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Chapter 4 Functions

Authored by Anthony Clark

Mathematics

8th Grade

CCSS covered

Chapter 4 Functions
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

f: R → R, f(x) = ax + 4, f-1(10) = 3, then x =

2

4

3

5

Tags

CCSS.HSF-BF.B.4A

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Given that f(x) = px + 3 and g(x) = qx - 4. If (g . f)(x) = 10x + 11, then q =

2

5

4

6

Tags

CCSS.HSF-BF.A.1C

3.

MULTIPLE SELECT QUESTION

1 min • 1 pt

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If A ⸦ B, determine whether the statement x ∉ A => x ∉ B is true or false.

True

False

4.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Media Image

If A ⸦ B, determine whether the statement x ∈ B => x ∈ A is true or false.

True

False

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Is the relation a function? Why or why not?

Yes, because the x-value 11 has two y-values pair with it.

Yes, because each x-value has only one y-value paired with it.

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

No, because each x-value has only one y-value paired with it.

Tags

CCSS.8.F.A.1

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Is this mapping a function?

yes

no

Tags

CCSS.8.F.A.1

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which function matches the graph?

y = -1/2x + 2

y = 1/2x + 2

y = 2x + 2

y = -2x + 2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

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