Use the graph to write a linear function that relates y to x.

y = − 2 x + 1 y=-2x+1 y = − 2 x + 1

y = − 1 2 x + 1 y=-\frac{1}{2}x+1 y = − 2 1 x + 1

y = 1 2 x + 1 y=\frac{1}{2}x+1 y = 2 1 x + 1

Use the table to write a linear function that relates y to x.

y = − 1 3 x y=-\frac{1}{3}x y = − 3 1 x

y = 1 3 x y=\frac{1}{3}x y = 3 1 x

Write a linear function that relates y to x . How long does it take to make 7 burritos?

y = 0.75 x y=0.75x y = 0 . 7 5 x ; 5.25 minutes

y = 0.75 x y=0.75x\ y = 0 . 7 5 x ; 7.5 minutes

y = 4 3 x y=\frac{4}{3}x y = 3 4 x ; 9.3 minutes

y = 1.3 x y=1.3x y = 1 . 3 x ; 13 minutes

The number of minutes it takes to make one burrito.

The number of burritos you can make per minute.

The cost (in dollars) for every one burrito.

You can make 4 burritos in 3 minutes.

Fill in the blanks: A linear function has ______________. When graphed, it forms a non-vertical ___________.

a constant rate of change; line.

a constant rate of change; curve

Describe the relationship between the two quantities. This graph represents sales of radios.

The amount of money in sales of radios decreases at a constant rate then remains constant.

The amount of money in sales of radios increases at a constant rate then remains constant.

The amount of money in sales of radios stays constant over time.

The amount of money in sales of radios decreases at a constant rate over time.

Describe the relationship between the two quantities. This graph represents electricity usage.

The electricity usage remains constant, then decreases at a constant rate, then remains constant.

The electricity usage remains constant, then increases at a constant rate, then remains constant.

The electricity usage remains constant, then decreases at a constant rate over time.

The electricity usage remains constant, then increases at a constant rate over time.

Unit 7 Review

Authored by Amy Hebel

Mathematics

8th Grade

CCSS covered

Used 28+ times

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23 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the definition of a function?

Has inputs and outputs

Inputs have different outputs every time

Every input has exactly one output

There are x-values and y-values

Tags

CCSS.8.F.A.1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Is the relation a function?

Yes

Tags

CCSS.8.F.A.1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Is the relation a function?

Yes

Tags

CCSS.8.F.A.1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Is the relation a function?

Yes

Tags

CCSS.8.F.A.1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

List the ordered pairs from the mapping diagram. Then, determine whether the relation is a function.

(0, 0), (1, 2), (1, 4), (2, 6) ; Yes, this is a function.

(0, 0), (1, 2), (1, 4), (2, 6) ; No, this is not a function.

(0, 0), (2, 1), (4, 1), (6, 2); Yes, this is a function.

(0, 0), (2, 1), (4, 1), (6, 2); No, this is not a function.

Tags

CCSS.8.F.A.1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Write a function rule for the statement:
The output is three less than the input

$y=x+3$

$y=x-3$

$y=3-x$

$x=y-3$

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Write a function rule for the statement:

The output is 4 more than triple the input.

$y=3x+4$

$y=3+4x$

$y=4-3x$

$y-x=4+3x$

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

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Unit 7 Review

What is the definition of a function?

Is the relation a function?

Is the relation a function?

Is the relation a function?

List the ordered pairs from the mapping diagram. Then, determine whether the relation is a function.

Write a function rule for the statement:
The output is three less than the input

Write a function rule for the statement:

The output is 4 more than triple the input.

Find the value of y for the given value of x.

Find the value of y for the given value of x.

Find the value of x for the given value of y.

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

Unit 7 Review

What is the definition of a function?

Is the relation a function?

Is the relation a function?

Is the relation a function?

List the ordered pairs from the mapping diagram. Then, determine whether the relation is a function.

Write a function rule for the statement:The output is three less than the input

Write a function rule for the statement:The output is 4 more than triple the input.

Find the value of y for the given value of x.

Find the value of y for the given value of x.

Find the value of x for the given value of y.

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

Write a function rule for the statement:
The output is three less than the input

Write a function rule for the statement:

The output is 4 more than triple the input.