Question

Inverse functions help

Answer 1

Let f(x) = 2x + 2. Solve f-1(x) when x = 4. (1 point)


1
3
4
10
1?

Answer 2

y=2*4+2
smitch places: 4=2y+2
y=1?

Answer 3

Yes, you're right, y = 1.

Answer 4

thx

Answer 5

First write your function, f(x) in terms of y. y =...

then switch x and y.

Resolve for y.

Label that as \(f^{-1}(x)\)

Then find \(f^{-1}(4)\)

Answer 6

\[f(x)=2x+2\]\[y=2x+2\]\[x=2y+2\]\[2y=x-2\]\[f^{-1}(x) =\frac{x-2}{2}, ~ ~~ x=4\]\[f^{-1}(4) =\frac{4-2}{2}\]\[f^{-1}(x) =1 ~\checkmark\]