Question

Let f(x) = 7x - 13. Find f-^1(x).

Answer 1

Do you mean the inverse?

Answer 2

\[ie. f ^{-1}(x)\]

Answer 3

yes

Answer 4

okay so you let y=7x-13

you swap your letters x and y
so now x=7y-13
and solve for y

Answer 5

13x - 7 rt?

Answer 6

not quite, you have the right idea

so if x=7y-13

x+13=7y
so y=(x+13)/7

do you understand how I got that?

Answer 7

yes

Answer 8

well that is your answer!

Answer 9

ok tyvm

Answer 10

you're very welcome