Respuesta :

snog

Answer:

f(-4) = -18 and if f(x) = -9, then x = -1

Step-by-step explanation:

To find f(-4), we plug x = -4 into f(x) so f(-4) = 3 * (-4) - 6 = -12 - 6 = -18. To find x when f(x) = -9, we can write:

-9 = 3x - 6

-3 = 3x

x = -1