Question

What is the inverse function of `f(x) = 3 - 1/2x`?

Answer 1

`y = -2x + 6`

Explanation:

Write as `y= 3 - 1/2x`

Make `x` the dependant variable

`x = 2(3-y) = 6-2y`

Swap the letters around giving:

`y = -2x + 6`