Question

Let g(x)be the reflection of f(x)=3x+12 in the x-axis. What is a function rule for g(x)?
A: =-3x+12 B: =3x-12 C: -3x-12 D:3x+12

Answer 1

It is mutiple chioce, here are the choices. I would like to have it expalined to me though if possible :)
A: =-3x+12
B: =3x-12
C: -3x-12
D:3x+12

Answer 2

if you plug in x=5 you will have the same value for x=-5