Question

If f(x)=-3x-2, find each value
1. f(3)
2. f(-7)
3.f(-2)+9
Please and thanks!

Answer 1

1. -11

2. 19

3. 13

Explanation:

f(x) = -3x - 2

1. f(3) = -3(3) - 2

f(3) = -9 - 2

f(3) = -11

2. f(-7) = -3(-7) - 2

f(-7) = 21 - 2

f(-7) = 19

3. f(-2) + 9 = (-3(-2) - 2) + 9

f(-2) + 9 = (6 - 2) + 9

f(-2) + 9 = 4 + 9

f(-2) + 9 = 13