Is this a function? Explain.

Yes; it passes the vertical line test.

Yes; it passes the horizontal line test.

No; there is a line connecting the dots.

The function y = 10x + 40 represents the cost (y) for joining a gym after you use it for x months. Which statement below is true?

The independent variable is x, the months.

The independent variable is y, the cost.

The function B = 50 - 4p represents the balance, B, on a gift card after you purchase p number of pumpkin spice lattes.

The dependent variable is B, the balance on the card

The dependent variable is p, the number of lattes.

Why is this function linear?

This is a linear function because it has a constant rate of change.

This is a linear function because the y-intercept is (0,2)

This is a linear function because it forms a curved line.

Why is this function nonlinear?

This function is nonlinear because x is squared

This function is nonlinear because of the +1

The linear function y = 25x represents the cost y (in dollars) for x people to attend a show. Is the domain discrete or continuous?

Discrete because you can't have a fraction of a person.

Continuous because any amount of people can attend.

A spoonful of sugar contains 50 calories. The number c of calories is a function of the number s of spoons eaten. Is the domain discrete or continuous?

Continuous because you can eat a part of a spoonful.

Discrete because you can't eat a part of a spoonful

The function shown represents the balance (B) on a $50 Dunkin gift card after you buy x cups of hot chocolate. Which choice best describes the domain?

Discrete domain because you cannot buy a fraction of a cup.

Continuous domain because you can order as many cups as you want.

The function f(x) represents the height of a ball x seconds after it is tossed straight up into the air. What is the meaning of f(x) = 8

After x seconds the ball is 8 feet high.

After 8 seconds the ball is x feet high

The height of the ball is the same at x seconds and 8 seconds.

The meaning of f(x) cannot be determined.

The function f(x) represents the height of a ball x seconds after it is tossed straight up into the air. What is the meaning of f(3) = f(10)

The height is the same at 3 seconds and 10 seconds.

After 3 seconds the ball is 10 feet high.

After 10 seconds the ball is 3 feet high

The meaning of f(x) cannot be determined.

The function f(x) represents the height of a ball x seconds after it is tossed straight up into the air. What is the meaning of f(2) = 5

After 2 seconds the ball is 5 feet high.

After 5 seconds the ball is 2 feet high

The height is the same at 2 seconds and 5 seconds.

The meaning of f(x) cannot be determined.

Describe the graph of the equation x = 4

Vertical and parallel to the y-axis

Horizontal and parallel to the x-axis

Algebra 1: Chapter 3 Review

Authored by Stephanie DiBari

Mathematics

8th - 9th Grade

CCSS covered

Used 18+ times

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60 questions

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MULTIPLE CHOICE QUESTION

15 mins • 1 pt

For the function
{(0,1), (1,-3), (2,-4), (-4,1)},
what is the domain?

{1, -3, -4,}

{0, 1, 2, -4}

{0, 1, 2, 3, 4}

{0,1,2}

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

CCSS.HSF.IF.A.2

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Does the graph represent a function?

Yes, because the vertical line test shows there are no repeating input values

No, because the vertical line test shows there are repeating input values

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Does this mapping diagram represent a function?

No, because there are repeating input values

Yes, because there are no repeating input values

Tags

CCSS.8.F.A.1

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

A relation that pairs each input with exactly one output is called a...

Relation

Linear

Exponential

Function

Tags

CCSS.8.F.A.1

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which graph does NOT pass the vertical line test?

Graph 1

Graph 2

Graph 3

Graph 4

Tags

CCSS.HSA.REI.D.10

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Is the relation a function? Why.

Yes, because each y-value is used only once.

No, because the x-value 11 has two y-values paired with it.

Tags

CCSS.8.F.A.1

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

All of the "x value" or "inputs" are called what?

Domain

Range

Relation

Function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

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Algebra 1: Chapter 3 Review

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, what is the domain?

Does the graph represent a function?

Does this mapping diagram represent a function?

A relation that pairs each input with exactly one output is called a...

Which graph does NOT pass the vertical line test?

Is the relation a function? Why.

All of the "x value" or "inputs" are called what?

Another name for the "y-values" or "outputs" is ...

Is this a function? Explain.

Is this a function?

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For the function
{(0,1), (1,-3), (2,-4), (-4,1)},
what is the domain?