Question

Find the inverse of f(x) = (x - 8)/3

Answer 1

first solve for x

Answer 2

and lets call f(x) y

Answer 3

y=x-8/3

Answer 4

ok! now solve for x

Answer 5

need help?

Answer 6

yes do you sub 8

Answer 7

noooo not yet. first lets get rid of the denominator. multiply it from bothsides

Answer 8

f(x)=3x+8

Answer 9

not really...how about 3y+8=x?

Answer 10

hello?

Answer 11

Another way to try. Let y=f(x). Just replace y with x with and x with y. Then, solve for y and that's your inverse.