which things are functions and which aren't

Which Things Are Functions And Which Aren't

Answers

Answer 1

Answer:

Vertical lines are not functions.(not functions )

Function with no arguments and no return value.

Function with no arguments and a return value.

Function with arguments and no return value.

Function with arguments and a return value.

Step-by-step explanation:

The equations y = ± x and x 2 + y 2 = 9 are examples of non-functions because there is at least one -value with two or more -values. The vertical line test is a great way to visualize a violation of the definition of a function.

Answer 2

Answer: the curved one is not a function because it is curved.

Step-by-step explanation:


Related Questions

in the xy-coordinate plane, the points (4, 2) and (-1, k) are on a line that is perpendicular to the line y = 2x + 1. What is the value of k?

Answers

Answer: The value of x is 7/5

The value of x is 5/7

Jenny decided to design her very own experiment from scratch. She created her hypothesis and gathered her materials. She did not have time to write down her steps. Instead, she kept the details in her memory. Which of the following requirements is missing from the procedures in this experiment?

Answers

Answer:

The answer is procedures.

Step-by-step explanation:

Without procedures no one will know exactly how she did her experiment.

she forgot to question and she forgot the scientific inquiry

Simplify: a. (4c^4)^3 b. (2/3)^3 (no exponents)

Answers

Answer:

( 12 , − 5 )

⋅ ( 5 , 6 )

( − 5 , 8 ) ⋅ (  , 4 )

( 4 , 4 ) +( 4 , 4 )

(12,-5)

thought i would post this because the other answer makes it a bit more confusing than it has to be

questions 1 and 2 pls

Answers

Answer:

The answer to the first question is "a"

And the answer to the second is I think "c"

Step-by-step explanation:

evaluate the expression solve for b = 15

19.9 + 2b =

Answers

Answer:

49.9

Step-by-step explanation:

if b is 15 then you multiply 2 and 15 (b) to get 30. then you add 19.9 and 30 to get 49.9

19.9 + 2(15) = 49.9
You just plug in the b value

what is the area of the kitchen, dining room, and living room?

Answers

Answer:

the dining room is 400 CM by 200 cm. the living room is 500 cm by 400 cm.

and the kitchen is 300 CM by 400 cm. please give brainliest

evaluate the expression solve for s = -1
write answer as decimal or whole number

48s + 32.7 - 32s =

Answers

Answer:

16.7

Step-by-step explanation:

48(-1) + 32.7 - 32(-1)

-48+32.7+32

Answer:47.3 ( i think I am a first grader)

Step-by-step explanation: so if s = -1 then 48 times -1 is -48  32 s = positive 32 because it is really . . .32.7+ - 32s :negative negative is a positive 32. then you just solve normally :)

7x + 3 = 5x = 15

will mark brainliest

Answers

I believe The answer is x=9
I think the answer is x=6

The average distance from the sun to the planet Mercury is about 58,000,000 km. The diameter of a human hair is about 0.0025 cm.

Part A) What is the distance from the sun to Mercury written in scientific notation?
Part B) What is the diameter of a human hair written in scientific notation?
Part C) In comparing the measurements in Parts (a) and (b), what else must be done before a comparison is made?

Answers

Answer:

Distance of Sun and Mercury = 58,000,000 km.

In Scientific notation, it would be: 5.8 × 10⁷ Km

Diameter of a human hair = 0.0025 cm

In scientific notation, it would be: 2.5 × 10⁻³ cm

Before Comparison, we need to bring  to  or vice-versa, so we can easily calculate then, here, we will go from cm to Km.

2.5 × 10⁻³ × 10⁻⁵ Km = 2.5 × 10⁻⁸

Now, we can compare the values,  

5.8 × 10⁷ Km > 2.5 × 10⁻⁸

[ reason. - power of smaller number is in negative, it means, it is denominator, which would be very small as compared to other ]

Answer:

58,000,000 km

Step-by-step explanation:

Write an addition expression to describe the situation. Then find the sum and explain its meaning.

A quarterback is sacked for a loss of 5 yards. On the next play, his team loses 15 yards. Then the team gains 12 yards on the third play.

Expression:

Sum:

Explain:

can someone answer the expression, sum and the explain part, please.

Answers

Answer:

5-15= -20    20+12 = 8 yards

Step-by-step explanation:

Expression: 5-15+12=8

Sum: 8 yards

Its 8 yards because they lose a total of 20 yards then gains 12 yards so you just have to subtract 20 and 8 = 12 yards

Expression: -5-15+12. Sum: -8. Explain: they lost 5 so it is negative 5 then they lost another 15 so it is negative 15 then they got 12 so positive 12

Madam C.J. Walker is the first African American self-made millionaire. She made her fortune by inventing and selling specialized hair products, including an innovative Edge Control product that sold for $0.45 each. Which algebraic expressions describe the total amount of money spent by consumers for any number of Edge Control products sold, e?

A.) (0.45)(e)

B.) 0.45÷e

C.) 0.45−e

D.) 0.45+e

E.) 0.45e

F.) (45)e


Help Me Fast, Please! And show step by step how to get the answers, please.

Answers

A and E, there is honestly no really steps to find this out, you just kind of think if it makes sense like you wont divide when you want to find out how many and how many is a key word to multiplication so look for multiplication like A and E.

Answer:

A and E, there is honestly no really steps to find this out, you just kind of think if it makes sense like you wont divide when you want to find out how many and how many is a key word to multiplication so look for multiplication like A and E.

Step-by-step explanation:

Use the Distributive Property to write the expression as an equivalent expression.

(When typing your answers, show that A= ______ and B= ______.)

A. 6(x + 4)



B. 2(5 - x)

Can anybody help me?

Answers

A= 6x + 24

B= 10 - 2x
6x+4




25-x
There you goo

Asap please help~~ thanks

Answers

1: 26
2: 3.75
3: 8
4: B
5: He did not meet his goal because when you add all his calories up for the day it is only 1,300 which is 700 less than his goal.
Number one is twenty six

The distance between -18 and 15 is equal to _____. A. 15 - (-18) B. 15 - 18 C. 18 - 15 D. -18 - 15

Answers

the answer for this question is A
The answer is A. You have to minus to find the distance.

Yannick bought a bicycle. He paid $194.25, including tax. If the sales tax rate is 5%, how much did Yannick pay for tax?

Answers

Answer:

$9.71 or $203.96

Step-by-step explanation:

5% of $194.25 is $9.71

if you wanted the overall cost that would be $203.96.

Answer:

$11.00 in sales tax

Explaination:

To find the sales tax from total bill, you would divide the total amount by "1 + the sales tax rate" (i.e., If the sales tax is 5%, divide the total amount by 1.05."

Soooo....

194.25 / 1.05 = 183.25**

** Now take that total and subtract it from the full total amount of 194.25.

194.25 - 183.25 = $11.00**

** This total is the amount of sales tax charged.**

sequence of transformation

Answers

Answer:A

Step-by-step explanation:I just did this and got 100.

answer: A
literally just did this

Andrea deposited 138 dollars into her bank account. Which expression represents Andrea’s bank account? *
A. x + 138
B. x - 138
C. 138x
D. x ÷ 138

Answers

Answer:

A. x+138

Step-by-step explanation:

Deposit into her bank account is adding money to her bank account. So that means she's adding $138 to her bank. Which gives us the expression of x+138.

laurie will draw a scale model of the garden she wants to plant. Her scale will be 1cm = 2.5 ft. what will be the actual dimensions of laurie's? a. 1.6 ft by 3.4 ft b. 4 ft by 34 ft c. 8 ft by 34 ft d. 10 ft by 21.25 ft

Answers

Answer:

D

Step-by-step explanation:

Because i said.......

The answer would be D. 4 x 2.5 is 10, and 8.5 x 2.5 is 21.25. Remember that 1 cm is equal to 2.5 feet.

What is 80,000,009 in expanded form?

Answers

8.0000009 x 10^7 is this what you mean?
80,000,000 + 9 ? is this what you mean ?

What is the value of x in the equation Negative 6 x = 5 x + 22?

Answers

Answer:

x=22

this is what i could fine hope this helps.

hope this helps you with the equation.

HELP!!!
While scuba diving, Rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. What expression can be used to find Rajeev’s new position?

12.6 – 8.7

–12.6 – 8.7

–12.6 – (–8.7)

12.6 – (–8.7)

Answers

While since Rajeev is already below the surface by 12.6 ft it’ll be negative (-12.6) and since he went down another 8.7 ft it’ll just be minus since he is still going under, so -12.6-8.7 will be your answer. :)

The required expression is 12.6 - (-8.7) can be used to find Rajeev’s new position.

What is the algebraic expression?

Algebraic expressions are mathematical statements with a minimum of two terms containing variables or numbers.

To find Rajeev's new position, we need to add the depths of his two descents.

Since the first descent was to a depth of 12.6 feet below the surface of the water, and the second descent was to a depth of 8.7 feet below the surface of the water, Rajeev's new position is 12.6 + 8.7 = 21.3 feet below the surface of the water.

Therefore, the expression we are looking for is 12.6 + 8.7 = 21.3. This is the same as the fourth option: 12.6 - (-8.7) = 21.3.

Learn more about the algebraic expression here :

brainly.com/question/21751419

#SPJ2

ASAP PLEASE ANSWER10+10= ??????????????????????????????????????????????????

Answers

Answer:

10+10=20.

Step-by-step explanation:

because it just is

Answer: 20

Step-by-step explanation: 1+1=2add the zero to the back

Are these functions: 1. In a class of ninth graders, the relationship between shoe size (x-axis) and height (y-axis). 2. in a class of ninth graders, the relationship between student (independent variable) and height (dependent variable).

Answers

Answer:

Your answer depends on the numbers showed to you.

Step-by-step explanation: To find your answer you need to look at the numbers on the x-axis are they the same repeating number each time(-1,9),(2,3),(4,-3)(-1,7) if they look like the example I just gave you then it is not a function. If the x-axis has all different number then yes it is a function.

The scenario 1 is not a function, while the scenario 2 is a function

How to determine the functions?

Scenario 1:

The relationship is between:

The shoe size on the x-axisThe height on the y-axis

It is true that a certain shoe size can belong to students of different heights.

This means that the relation is a one-to-many relation

A one-to-many relation is not a function;

Hence, this is not a function

Scenario 2:

The relationship is between:

Independent variable: StudentDependent variable: Height

It is true that a student can have only one height.

This means that the relation is a one-to-one relation

A one-to-one relation is a function;

Hence, this is a function

Read more about relations and functions at:

https://brainly.com/question/2253924

100 cm is equal to: 0.1 m 1 m 10 m 1,000 m

Answers

Answer: 1 m or 1 meter

1 meter.

remember, each 100 cm is equal to one meter. So,200 cm would be 2 meters

evaluate the expression solve for k = -3.4 write answer as a decimal or whole number

7k/10

Answers

-2.38 is the answer because 7x-3.4=x/10=-2.38

The length of a rectangle is 5 times larger than x. The width is 4 cm less than the length. The perimeter is at least 96 cm. What are the smallest possible dimensions for the rectangle?

Answers

We know that the perimeter of a rectangle = 2(l + w)

l = length

w = width

In our problem,

l = 5x

w = 5x - 4

Let's create an inequality to help us solve this problem.

2(5x + (5x - 4)) ≥ 96

Let's start off by simplifying the terms inside the parentheses.

2(10x - 4) ≥ 96

Distribute the 2

20x - 8 ≥ 96

Add 8 to both sides.

20x ≥ 104

Divide both sides by 20

x ≥ 5.2

Let's plug 5.2 into x for our length and width.

Length = 5x = 5(5.2) = 26 cm

Width = 5x - 4 = 5(5.2) - 4 = 26 - 4 = 22 cm

The smallest possible dimensions for the rectangle are, length = 26 cm and width = 22 cm  

Answer:

width = 10 cm

length = 14 cm

The smallest dimension is 10 cm.

Step-by-step explanation:

2x + 2(x + 4) ≥ 48

Solve for x.

2x + 2x + 8 ≥ 48

4x + 8 ≥ 48

4x ≥ 40

 x ≥ 10

Pls help!!!!!! Need it

Answers

What is the question? how can I help?

Given a value for the in put variable x, and the output variable y, calculate the constant of proportionality. x = 60, y = 18.

Answers

The answer is four because of the way it’s shown.
Yup, the answer is 4 for the variable x

evaluate the expression solve for h = 1.1

h to the second power - 39.7h

Answers

Answer:

-42.46

Step-by-step explanation:

h^2-39.7h=

(1.1)^2-39.7(1.1)=

1.21-43.67=

-42.46

The answer should be -42.46 if it isn’t then I’m really sorry but good luck

A chemical plant takes 6 1/3 million gallons of water from a local river and puts
2 7/12 million gallons back into the river. How much water does not go back into the river?

SHOW WORK or i'll just take your answer off so someone else can answer -3-

Answers

the answer is 3 & 3/4
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