Question

For the function f(x) = (4 – 2x)^2, find f^–1 and the domain and range of f and f^–1. Determine whether f^–1 is a function.

Answer 1

Algebra 1?

Answer 2

algebra 2

Answer 3

Oh..

Answer 4

domain of f- all reals
range of f- all non negative reals [0,infinity]

Answer 5

Hmm I was in pre-calculus when I leaned about this lol So this is algebra 2 now?

Answer 6

\[f ^{-1}(x) = (4-\sqrt{x} )/2\]

Answer 7

well, its the last unit so...

Answer 8

Ah ok, you will see it in pre-calculus so remember it :-)

Answer 9

is it a function? or is it not?

Answer 10

It is a function.