Question

f(x) = 4x-1/2 then f^-1(x)=????

Answer 1

interchange y and x and solve for y

Answer 2

still confused

Answer 3

wats the 2nd equation?

Answer 4

okay rewrite as y = 4x - 1/2.
then switch y and x x = 4y - 1/2.
then solve for y

Answer 5

but there is no y in the problem

Answer 6

replace f(x) with y

Answer 7

ohhhhhh!!! ok:D makes sense now

Answer 8

so y = 4y-1/2?

Answer 9

wait i am sorry do you mind solving it for me and showing it please....

Answer 10

y = 4x - 1/2
switch x = 4y - 1/2
solve for y : x + 1/2 = 4y
(1/4)x + 1/8 = y
so f^-1(x) = (1/4)x +1/8

Answer 11

thank you! =)