FAST Practice Quiz: Functions

Directions: Read each question carefully. For multiple choice questions, fill in the circle next to your answer. For questions that say "Select ALL that apply," you may need to choose more than one answer.

Question 1

Which table represents a function?

Table A

x	1	2	3
y	4	5	6

Table B

x	1	2	1
y	4	5	7

A Table A only B Table B only C Both tables D Neither table

Question 2

If f(x) = 3x - 5, what is the value of f(4)?

A 7 B 12 C -2 D 17

Question 3

Which of the following represents a NON-LINEAR function?

A f(x) = 4x + 2 B f(x) = x/3 C f(x) = x² - 1 D f(x) = -2x

Question 4

Select ALL that apply.

Which sets of ordered pairs represent functions?

{(1, 2), (2, 4), (3, 6)}

{(5, 3), (5, 7), (6, 8)}

{(2, 5), (3, 5), (4, 5)}

{(1, 1), (2, 2), (1, 3)}

Question 5

A graph passes the vertical line test. What does this tell you?

A The graph is linear B The graph represents a function C The graph has a positive slope D The graph passes through the origin

Question 6

If g(x) = 2x + 8, what is the value of x when g(x) = 20?

A x = 4 B x = 6 C x = 14 D x = 48

Score

Questions 1-3, 5-6: 1 point each | Question 4: 1 point for all correct

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FAST Practice Quiz: Functions

Score

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