Question

If f(x) = 12 + 4( x−6 )



What is f(-3)

Answer 1

Answer:
-24

Explanation:
f(-3) = 12 + 4(-3-6)
f(-3) = 12 + (-36)
f(-3) = -24

Answer 2

f(- 3) = - 24

Explanation:

to evaluate f(- 3) , substitute x = - 3 into f(x)

f(x) = 12 + 4(x - 6) , then

f(- 3) = 12 + 4(- 3 - 6) = 12 + 4(- 9) = 12 - 36 = - 24