F(x)=3x-2 find f^-1(x) than find f^-1(13)

see explanation

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = 3x - 2 ( add 2 to both sides )

y + 2 = 3x ( divide both sides by 3 )

= x

change y back into terms of x with x = (x)

(x) =

To evaluate (13) substitute x = 13 into (x) , that is

(13) = = = 5

answer: b.

step-by-step explanation:

the y coordinate for point b is 0, and answer b is the only one with that y coordinate.