Question

Find the inverse function
f(x)=x+9

Answer 1

y=x+9

Answer 2

switch x and y

Answer 3

x=y+9

Answer 4

and now slove for y

Answer 5

what did u get?

Answer 6

-9?

Answer 7

solve for y =x-9

Answer 8

the answer is x-9

Answer 9

oh so you keep the x wait what if it was like f(x)=3x+6

Answer 10

then switch again y=3x+6 ->x=3y+6->(x-6)/3=y

Answer 11

how did u get that?

Answer 12

just switch x and y and slove for y

Answer 13

as earlier

Answer 14

thanks so much :)

Answer 15

:-)