Lesson 3 Homework Practice - Functions

Lesson 3 Homework Practice - Functions

8th Grade

12 Qs

quiz-placeholder

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Lesson 3 Homework Practice - Functions

Lesson 3 Homework Practice - Functions

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Easy

CCSS
8.F.A.1

Standards-aligned

Created by

John Hogan

Used 1+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Determine whether the relation is a function. Explain. Domain: {-8, -4, 4, 8}, Range: {24, 32}.

Yes, it is a function because each element in the domain is paired with exactly one element in the range.

No, it is not a function because an element in the domain is paired with more than one element in the range.

Yes, it is a function because the domain and range are both finite sets.

No, it is not a function because the range has fewer elements than the domain.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Determine whether the relation is a function. Explain. Domain: {1, 2, 3, 4}, Range: {10, 15, 20, 25}.

Yes, it is a function because each element in the domain is paired with exactly one element in the range.

No, it is not a function because some elements in the domain are paired with more than one element in the range.

Yes, it is a function because the range has more elements than the domain.

No, it is not a function because the domain has more elements than the range.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Determine whether the relation is a function. Explain. {(5, -5), (5, 5), (6, -6), (6, 6)}.

Yes, it is a function because each input has a unique output.

No, it is not a function because the input 5 has two different outputs.

Yes, it is a function because it has pairs of numbers.

No, it is not a function because it has more than two pairs.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Determine whether the relation is a function. Explain. {(4, 11), (5, 13), (6, 15), (7, 17)}.

Yes, it is a function because each input has a unique output.

No, it is not a function because some inputs have multiple outputs.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Determine whether the relation is a function. Explain. x: {0, 1, 2, 3}, y: {0, 1.25, 2.50, 3.75}.

Yes, it is a function because each x-value is paired with exactly one y-value.

No, it is not a function because some x-values are paired with more than one y-value.

Yes, it is a function because the y-values are unique.

No, it is not a function because the x-values are not unique.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Nora earns $15.75 per hour. Are her wages a function of the number of hours she works? Justify your response by creating a set of ordered pairs.

Yes, because each hour worked corresponds to a unique wage amount.

No, because the wages do not depend on the number of hours worked.

Yes, because the wages are constant regardless of hours worked.

No, because the wages vary with different hours worked.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Determine whether the relation is a function. Explain. {(2, 4), (2, 8), (3, 6), (4, 8)}.

Yes, it is a function because it has pairs of numbers.

No, it is not a function because it has more than two pairs.

No, it is not a function because the input 2 has two different outputs.

Yes, it is a function because each input has a unique output.

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