Question

f(x)=3-1/2x
in inverse function?

Answer 1

To find the inverse:

Replace f(x) with y
Switch x's and y's, so put x where y is and x where y is.
Solve for y
Replace y with f^-1(x)

Answer 2

so it goes
y=3-1/2y
3/2y=3
y=3/(3/2)
y=2
f^-1(x)=2?

Answer 3

@iambatman
did I do it right?

Answer 4

Well no, but is your equation \[f(x) = \frac{ 3-1 }{ 2x }\]

Answer 5

I believe it's \[f(x) = 3 - \frac{1}{2}x\]

Answer 6

Either way it's wrong, your x disappeared somewhere, you let your x = y, instead of switching them.

Answer 7

And when @iambatman said replace f(x) with y, he didn't mean replace all x's with y's xD

Answer 8

bingo.

Answer 9

If you could confirm which equation it is, that would be nice :p

Answer 10

the equation is
f(x)=3-(1/2)x

Answer 11

Oh so what Jhanny said

Answer 12

Ok lets do this in steps