CAASPP Functions 2

Question 1

What is the y-intercept of the function f(x) = 4x − 9?

Accepted Answer

−9

Answer

4

Answer

−4

Answer

9

Question 2

Which equation models exponential growth?

Accepted Answer

y = 2^x

Answer

y = 2x + 1

Answer

y = x²

Answer

y = 2/x

Question 3

If f(x) = x² + 2, what is f(−3)?

Accepted Answer

11

Answer

−7

Answer

7

Answer

−11

Question 4

Which statement best describes the rate of change of a linear function?

Accepted Answer

It is constant

Answer

It increases, then decreases

Answer

It is always zero

Answer

It varies depending on x

Question 5

A function has the equation y = 3x. If x doubles, what happens to y?

Accepted Answer

y doubles

Answer

y stays the same

Answer

y triples

Answer

y is halved

Question 6

What does the domain of a function represent?

Accepted Answer

All possible input values

Answer

All possible output values

Answer

The rate of change of the function

Answer

The y-intercept of the function

Question 7

Which of the following functions has the greatest rate of change (steepest slope)?

Accepted Answer

f(x) = −4x + 2

Answer

f(x) = x + 5

Answer

f(x) = 3x − 1

Answer

f(x) = 2x − 7