Question

Find an expression for the function whose graph is the bottom half of the parabola x + (y - 8)2 = 0.

Answer 1

is it -sqrt(x-8)^2

Answer 2

\((y-8)^2=-x\)
\(y-8=\pm\sqrt{-x}\)
For the bottom half, \(y<8\)
So \(y=8- \sqrt{-x}\)