Given that the zeros of a quadratic function are -2 and 8, what is the standard form of the quadratic function?

Answers

Answer 1

Using quadratic equation, The equation for given value of zeros is equation is x² - 6x - 16 = 0.

What is a quadratic equation?

f(x) = ax2 + bx + c, where a, b, and c are integers and an is not equal to zero, is a quadratic function.

A parabola is the shape of a quadratic function's graph. Although the "width" or "steepness" of a parabola can vary as well as its direction of opening, they always have the same fundamental "U" form. The three graphs in the image below are all parabolas.

The following must be true if those are the 0s:

-2 + 2 = 0

8 - 8 = 0

We would thus get the following equation if we were to include them in a quadratic-based one:

(x + 2)(x - 8) = 0

x² - 8x + 2x - 16 = 0

FOIL

Roughly speaking, x² - 6x - 16 = 0

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Answer 2

Answer:

f(x) = x2 − 6x − 16

Step-by-step explanation:

Write the zeros as solutions of two equations.

x  =  −2  x  =  8  

x + 2  =  0   x − 8  =  0  Rewrite each equation so that it equals 0.

Find the product of the two binomials.

(x + 2)(x − 8)  =  x2 − 8x + 2x − 16   Multiply.

=  x2 − 6x − 16  Simplify.

Rewrite the equation in function notation.

f(x) = x2 − 6x − 16

Therefore, the quadratic function with zeros of −2 and 8 is f(x) = x2 − 6x − 16.


Related Questions



Solve 9x - 2y = 15 for y.


Y =

Answers

9x-2y=15
-9x. -9x
-2y=-9x+15
Divide by -2.
y=-9/-2+15/-2

Hope this helps.

Just give me an example for problem 3 please

Answers

The angles that has C as a vertex are:

13. ∠HVJ, ∠HVI, ∠JVI

14. ∠DVF, ∠DVE, ∠FVE

How to Name Angles Using Their Vertex?

Angles that have letter V at their vertex can be named as an angle contain V as a point.

13. The angles that have V as vertex are:

∠HVJ

∠HVI

∠JVI

They all contain vertex V.

14. The angles that have V as vertex are:

∠DVF

∠DVE

∠FVE

They all contain vertex V.

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I need help asap!!!!

Answers

Answer:

y = 2016 - 112x

Step-by-step explanation:

because he is paying 112 dollars each month for 18 months

y= 2016 -112x

for instance, he paid it for 6 months we would say

y = 2016 - 112(6)

y = 2016 - 672

y = 1334

so, y = 2016 - 112x

through: (-2,-3) and (5,-3)

Answers

Answer:

0, -7 or Slope is Undefined

Step-by-step explanation:

y2 - y1 / x2 - x1

(x2 - y2) (x1 - y1)

The square root of 16 to the second power -14 to the second power

Answers

Answer:

is it -180?

I don't remember most of this stuff!

sorry if its wrong

Step-by-step explanation:


Write an equation to solve each problem. The first stage of a rocket burns 28 s longer than the second stage. If the total burning time for both stages is 152s , how long does each stage burn?

Answers

Answer:

From the Soldier's point of view, the American Civil War was not a continuous battle. Instead, it was long monotonous marches and long residency in camps punctuated by the terror and chaos of combat. When winter set in and the campaigning season came to a close, most Soldiers counted on a long, cold stay in a winter camp. The four log cabins at the center of the Army Heritage Trail represent the types of buildings which Soldiers in both the Union and the Confederate Armies spent the long dreary months of winter. The cabins are modeled after images from the USAHEC collection, including the Army of the Potomac's winter camp at Brandy Station and the Confederate camp at Centerville


Two rectangular prisms are similar. The height of the first prism is 6 yards and the height of the other prism is 9 feet. If the volume of the first prism is 810 cubic yards, what is the volume of the other prism?

Answers

   The value of the volume of the other rectangular prism is V = 101.25 yd³.

What is a numerical ratio?

  A numerical ratio is a constant value that relates a system of two or more variables, it allows us to know how their variations will be as the values change.

   First we must find the ratio between the heights of the rectangular prisms, for this we determine the height in the same unit:

1 yard = 3 ft9 ft x (1yd / 3ft) = 3yd

 We express the following:

b/a = 3/6b/a = 1/2

For volume

1/2³ = 1/8 = V/810

V = 101.25 yd³

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In Δ A B C, ∠ B is a right angle and ∠A is 20° greater than ∠C . What is the measure of ∠C ?
A 30
B 35
C 40
D 45
E 70

Answers

The measure of ∠C in ΔABC is 35°.

Angle Sum Property of a triangle states that sum of all the interior angle of a triangle is 180°.

In the given Question

∠B=90° , ∠A=∠C+20°...(1)

By angle sum property of triangle for ΔABC

we get

∠A+∠B+∠C=180°

Substituting the values of ∠B and ∠C from equation (1) we get

∠C+20°+90°+∠C=180°

2∠C+110°=180°

2∠C=180°-110°

2∠C=70°

∠C=35°

Therefore  , the value of ∠C in ΔABC is 35°.

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If a car can travel 300 miles in 4 hours, how far can it go in an hour and a half?

Answers

Answer:

112.5miles

Step-by-step explanation:

4hrs=8 half hours

And 1hr30min=3 half hours

If a car travels 300miles in 8 half hours with the mathematical expression of

300miles-8hh

Then for the 3 half hour we have

X-3hh

Comparing the two

300miles-8hh

Xmiles-3hh

By cross multiplying

8×X=3×300

8X=900

X=900/8

X=112.5miles


Determine whether each sequence is arithmetic. If so, identify the common difference. 1,1,2,3,5,8, ...........

Answers

The sequence 1,1,2,3,5,8, ........... doesn't form an AP as they have the varying common difference.

What is the sequence of AP arithmetic progression?

In Arithmetic Progression, the difference between these two numerical orders is a fixed number (AP). Arithmetic Sequence is another name for it.

We'd come across a few specific keywords in AP that had been labeled as:

The first term (a)Common difference (d)Term nth (an)The total of first n terms (Sn)

As shown below, the AP can also be explained in expressed in the form of common differences.

The following is the procedure for evaluating an AP's n-th term: an = a + (n − 1) × dThe arithmetic progression sum is as follows:  Sn = n/2[2a + (n − 1) × d].Common difference 'd' : d = a2 - a1 = a3 - a2 = a4 - a3 = ......      = an - an-1.

Now, the sequence given is; 1,1,2,3,5,8, ...........

The series contains of given 6 terms.

Let the initial term be 'a₁' = 1.

The second term be 'a₂' = 1.

The third term be 'a₃' = 2.

And, the fourth term is 'a₄' = 3.

For the sequence to form the AP, they must have the equal common difference. So,

d = a₃ - a₂

Substitute the values.

d₁ = 2 - 1

d₁ = 1

Thus, the calculated common difference is 1.

or d = a₅ - a₄  (Put the values)

d₂ = 5 - 3

d₂ = 2

Since, d₁ ≠ d₂

Thus, we can say that the given sequence is not forming an AP.

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Write an explicit and a recursive formula for each arithmetic sequence. -2,-13,-24, . . . . .

Answers

Given an arithmetic sequence -2,-13,-24, . . . , the recursive formula is: a(n) = a(n-1) -11 and the explicit formula is a(n) = 9 - 11n

Suppose we are given an arithmetic sequence:

  a(1), a(2), a(3), a(4), ....

Then, in an arithmetic sequence, the next term is obtained by adding a constant to the previous term. This constant is called a common difference.

Let d = common difference, then
a(2) = a(1) + d

a(3) = a(2) + d

and so on, until

a(n) = a(n-1) + d

This is a recursive formula. Here a(n) = nth term, and a(n-1) = (n-1)th term.

The sequence in the problem:

       -2,-13,-24, . .

Notice that:

-13 = -2 + (-11)

-24 = -13 + ( -11)

Hence, d = -11, and therefore, the recursive formula for the nth term is:

a(n) = a(n-1) -11

To find the nth term, we can also use the explicit formula:

a(n) = a(1) + (n-1).d

In the given sequence, a(1) = -2, and d = -11. Substitute these parameters:

a(n) = -2 + (n-1) . (-11)

      = -2 - 11n + 11

      = 9 - 11n

Thus, the explicit formula is a(n) = 9 - 11n.

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One of the particles in atoms is called an electron. It has
particle in atoms is a proton. It has charge of +1.
The overall charge of an atom is the sum of the charges of the electrons and the
protons. Here is a list of common elements.

Answers

To find the total charge, it seems we should add the charge of protons and electrons here.

Aluminum: (-10) + 13 = 3

Aluminum has an overall charge of +3.

Phosphide: (-18) + 15 = -3

Phosphide has an overall charge of -3.

Iodide: (-54) + 53 = -1

Iodide has an overall charge of -1.

Tin: (-50) + 50 = 0

Tin has an overall charge of 0.

record the letter of each graph with the given characteristics a has a vertical axis of symmetry

Answers

A parabola with a vertical axis of symmetry is graphed at the end of the answer.

What is the equation of a parabola given it’s vertex?

The equation of a quadratic function, of vertex (h,k), with a vertical axis of symmetry, is given by:

y = a(x - h)² + k

In which a is the leading coefficient.

The most simple example of this is the parabola y = x², which is graphed at the end of the answer.

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−3/8+(−2
9/10)



Enter your answer as a simplified fraction

Answers

The simplied form of the given fraction will be -3 11/40.

What are proper and improper fractions and how to convert mixed fraction to simple fraction?

There is a fraction, containing numerator(upper value) and denominator(lower value).  When the numerator is less than the denominator, the fraction is called proper fraction, otherwise it is called improper fraction. A proper fraction is also called fraction which is less than 1 an improper fraction is ≥ 1. A mixed fraction contains a sum of whole number and a proper fraction.

WE have been given an expression as;

−3/8+(−2 9/10)

Then first we will solve the mixed fraction;

−2 9/10 = -29/10

Now solve the fraction;

−3/8+-29/10

-131/40

In mixed number form:

-3 11/40

Hence, The simplied form of the given fraction will be -3 11/40.

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Write each equation in slope-intercept form. Then find the slope and y -intercept of each line. - [ (1/2)x - y ] = 3/4

Answers

The slope is 1/2 and the y-intercept is 3/4 in the equation  - [ (1/2)x - y ] = 3/4.

What is a slope of line?

A line's steepness and direction are determined by the slope of the line. Without actually using a compass, determining a line's slope in a coordinate plane allows one to anticipate whether a line is parallel, perpendicular, or not.

The change in a line's y coordinate relative to its change in x coordinate is referred to as the line's slope. Δy is the net change in the y coordinate, while Δx is the net change in the x coordinate.  

Therefore,

m =  y₂-y₁/x₂-x₁ (where m denotes the slope) can be used to express how the y coordinate changes in relation to the x coordinate.

Be aware that tan ∅ = y/x

We also refer to this tan as the line's slope

We know that the equation for slope(m) and y - intercept(c) of a line is given by :

y = mx + c

Here given the equation - [ (1/2)x - y ] = 3/4, lets simplify

⇒ - [ (1/2)x - y ] = 3/4

⇒ -(1/2)x + y  = 3/4

⇒ y =  (1/2)x + 3/4

Hence, the slope is 1/2 and the y-intercept is 3/4 in the equation  - [ (1/2)x - y ] = 3/4

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Can someone help me with my geometry hw?

Answers

Answer:

Step-by-step explanation:

need help solving please

Answers

Answer:

3 option

Step-by-step explanation:

To find the missing side (c) you need to do a^2 and b^2

Formula a^2 + a^2 = c^2


Evaluate each logarithm.
log₄ 64

Answers

Answer:

well done .... keep practicing....

How to get the equation of a line

Answers

Key IdeasFinding the equation of a lineSlope-intercept form

Answering the Question

There are a couple ways we can get the equation of a line, depending on what we're given.

The Equation Form

Most linear equations are organized in slope-intercept form:

[tex]y=mx+b[/tex]

m = slopeb = y-interceptSlope

The slope of a line can be calculated algebraically when we know two points that fall on the line:

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

[tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] are the two points

Y-intercept

The y-intercept is the value of y when the line crosses the y-axis, or when x = 0. When given a graph, you can sometimes read the y-intercept directly from the graph.

For instance, if the line passes through the point (0,5), then the y-intercept is 5.

You can also find the y-intercept algebraically if you know the slope and one point that falls on the line. You plug in that point as (x,y) and isolate b.

Summary

For most cases, you can use the following method to find the equation of a line:

Find the slope of the line (using the slope equation) and plug it into y=mx+bFind the y-intercept of the line algebraically and plug it into y=mx+b

Simplify the expression 36 + 63 ÷ 9.

Answers

63➗9 = 7

36 + 7

Answer: 43


Determine whether the quadrilateral can always, sometimes, or never be inscribed in a circle. Explain your reasoning.
parallelogram

Answers

A rectangle as the only parallelogram that can be inscribed in a circle.

What shapes can be inscribed in a circle?

Every circle has an inscribed triangle with any three given angle measurements (summing to 180°, of course), and every triangle can be inscribed in any circle (which is called its circumscribed circle or circumcircle). Every triangle has an incircle, which is a circle that has been inscribed.

The only parallelogram that can be inscribed in a circle is a rectangle. Because every rectangle can be inscribed in a (unique circle), the important point is that the radius of the circle is R. (I think). One of the properties of a rectangle is that the diagonals bisect in the 'center,' which is also the center of the circumscribing circle.

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a) Urgen has 500 rupees. She spent 50 rupees to eat Mo:Mo and 100 rupees to buy exercise books. How much money did she have?​

Answers

Answer:

650 Rupees

Step-by-step explanation:

Add all together

What’s the negative exponent ??

Answers

Answer:

[tex]10 { }^{ - 5} [/tex]

Step-by-step explanation:

that is the answer above

what is the greatest common factor of 7 and 35x

Answers

Answer:

7

Step-by-step explanation:

Hope this helps!!

Hi can anybody help with (a)? I'm struggling with this question

Answers

Answer: 26.6 mins.


Explanation: 35 mins (the mean time) x 20 adults = 700 mins in total of all adults
34.6 mins (new mean time) x 21 adults = 726.6 mins in total of all adults.

726.6 mins - 700 mins = 26.6 mins

Greta uses 3 cups of pasta for every 3/4 cup of sauce. How much pasta does she use per cup of sauce?

Answers

4 cups of pasta are used per cup of sauce.

Given,

Greta uses 3 cups of pasta for every 3/4 cup of sauce.

We need to find how much pasta she uses per cup of sauce.

How to compare two quantities?

Example:

12 apples = 2 basket ____(1)

For 5 baskets:

We need to make 2 baskets = 5 baskets.

We can divide by 2 and multiply 5 on both sides on (1).

5/2 x 12 apples = 5/2 x 2 baskets

30 apples = 5 baskets.

We have,

3 cups of pasta = 3/4 cup of sauce

We need to make 3/4 cup of sauce as 1 cup of sauce.

Multiply 4/3 on both sides.

4/3 x 3 cups of pasta = 4/3 x 3/4 cup of sauce

4 cups of pasta = 1 cup of sauce

Thus 4 cups of pasta are used per cup of sauce.

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Select the correct answer.
The spread of data set X is greater than the spread of data set Y, and the data sets are normally distributed. Which statement is true?
OA The mean of data set XIs greater than the mean of data set Y.
OB. The median of data set X is less than the median of data set Y.
OC. The standard deviation of data set Xis greater than the standard deviation of data set Y.
OD. The range of data set X is less than the range of data set Y.
O E.
The mode of data set X is greater than the mode of data set Y.

Answers

Answer:

C

Step-by-step explanation:

Just the spread of normally distributed data tells us nothing about the mean, mode or median, so answers A, B, and E are out of question.

The range is based on the difference between the highest and lowest elements. As there can be big outliers, we have no idea if D is true, although we expect distributions with bigger spread to generally exhibit bigger ranges.

We're left with answer C. Standard deviation is a measure of "how much the data can deviate from the mean". It's also one of the measures of spread. We expect data that's more spread out (higher spread) to have a higher standard deviation.

Determine whether each function is linear or quadratic. Identify the quadratic, linear, and constant terms. y=2 x-y-13

Answers

  The given function  y = 2x - y - 13² , is a linear function

 where:

 Its linear term is -12x  Constant is -18

What is a function?

A function is the definition of a mathematical expression or equation that helps us to give a visual representation, through graphs to analyze the behavior of the same, a function is not real when it cuts the vertical axis at a same point of x.

 The function we have is particular because it has two variables, and these two are "x" and "y", but the y is the image so we do not consider it a variable.

y = 2x - y - 13

y + y = 2x - 13

2y = 2x - 13

y = (2x - 13)/2

y = x - 13/2

y = x - 6.5

  Here we notice that we have a linear function

  It has no quadratic term   Its linear term is "x"   Its constant is "-6.5".

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A 90 ​-inch board is cut into two pieces. One piece is two times the length of the other. Find the length of the shorter piece.

Answers

Answer:

30 inches

Step-by-step explanation:

We know that the total length of the board is 90 inches and we know that the shorter piece is two times smaller than the other so we have two pieces divided into three sections 90 divided by three is 30 and since we realize that 30x2=60 and 60+30=90 it means the longer board is 60 inches and smaller one is 30 I hope this helps.

Find the value of 8 1/3

Answers

Answer: The answer is 25/3.

Step-by-step explanation: 8 1/3 = 8 x 3 + 1/3 = 24 + 1    =   25/3

                                                      --------           -----------                                                      

                                                         3                    3

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