Question

help please
f(x)=4x+8

Answer 1

what the inverse

Answer 2

thank you

Answer 3

f(x) = 4x-8
y=4x-8 Replace f(x) with y.
x=4y-8 Switch y and x and solve for y.

Answer 4

so
y=4x-8

Answer 5

do i switch x for a random number??

Answer 6

No, you don't switch it for a random number. Just leave it as it is.

Answer 7

ok so i got it right

Answer 8

y=x/4+2

Answer 9

y=4x-8
4/4x-8
x=2

Answer 10

oh sry didn't see the response

Answer 11

one sec

Answer 12

This is what your answer should look like: http://formula.algebra.com/cgi-bin/plot-formula.mpl?expression=f%5Bx%5D%5E-1=%28x%2F4%29%2B2&x=0003

Answer 13

oh ok thx
but i have to write it out step by step

Answer 14

didn't you already do that
f(x) = 4x-8
y=4x-8 Replace f(x) with y.
x=4y-8 Switch y and x and solve for y.

Answer 15

Yes.

Answer 16

thx

Answer 17

havenice day

Answer 18

No problem, remember to close this question!