ACT Math: Functions 2

Question 1

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

Accepted Answer

7

Answer

12

Answer

17

Answer

-2

Question 2

If g(x) = x^2 + 2x, what is g(-3)?

Accepted Answer

3

Answer

-3

Answer

15

Answer

9

Question 3

What is the domain of f(x) = 1/(x - 2)?

Accepted Answer

All real numbers except 2

Answer

All real numbers except 0

Answer

x > 2

Answer

All real numbers

Question 4

If f(x) = 2x + 1 and g(x) = x - 3, what is f(g(5))?

Accepted Answer

5

Answer

11

Answer

13

Answer

7

Question 5

Which value of x makes f(x) = x^2 - 9 equal to zero?

Accepted Answer

3

Answer

9

Answer

0

Answer

6

Question 6

What is the slope of the linear function f(x) = -4x + 7?

Accepted Answer

-4

Answer

7

Answer

4

Answer

-7

Question 7

If h(x) = x^2, what is h(x + 1)?

Accepted Answer

x^2 + 2x + 1

Answer

x^2 + 1

Answer

x^2 + 2x

Answer

2x + 1