Question

If f(x)=3x-2 , find f^-1(x)

Answer 1

See below

Explanation:

y = 3x-2 switch x's and y's then solve for y

x = 3y-2

x+2 = 3y

y = (x+2) / 3 <===== this is f^-1 (x)

Now you can try the one posted in the picture.....