Question

Math help please.

Answer 1

well first let's replace f(x) with y

y = 4x -2

switch the x and y

x = 4y - 2

then you can re-solve for y and find the inverse of that

Answer 2

I'm not understanding

Answer 3

to find the inverse of a function y = something x, you just need to switch x and y, solve the new equation for y, that new equation will be the inverse

then you can find the y-intercept of the new inverse function

Answer 4

so start by solving x = 4y - 2 for y

Answer 5

good, so what would be the y-intercept of that new function?

Answer 6

y = mx + b

m is the slope
b is the y-intercept

Answer 7

the question is asking for the y-intercept

compare

y = (1/4)x + (1/2)
with

y = mx + b

to see what the b value is

Answer 8

I don't know how to do any of this, just forget it. Thanks anyways

Answer 9

therefore your y-intercept is 1/2

Answer 10

thanks