Question

Please help! I will mark as brainliest IF answer is right. <3

Answer 1

Answer:

f(x+4) = 3x+9

Step-by-step explanation:

substitute x+4 in place of x ie, 3(x+4) - 3 = 3x+12-3 = 3x+9

Answer 2

Answer:

$f(x + 4) = 3x + 9$

Step-by-step explanation:

$f(x) = 3x - 3 \\ f(x + 4) = 3(x + 4) - 3 \\ = 3x + 12 - 3 \\ = 3x + 9$

I hope I helped you^_^