This means the parabola equals 0 at x=1 and x=0 (this should help graph it). A graph shows that between x=1 and x=0 y is positive.

Stationary point: .

The stationary point (it's a maximum, you can prove that part) is . This is the second part of the graph and comes in handy later!

The transformation is but we know that . Hence the transformation is .

The domain therefore is (otherwise we would have the square root of something negative).

The range is .