f(x) = 8 − x^2, x ≥ 0, f −1(x) = ? x ≤ 8. find the inverse.

Question

Please help! Need answer

Answer 1

f(x) = 8 − x²

y = 8 − x²

x = 8 - y²

y² = 8-x

y = √(8-x)

f^-1(x) = √(8-x),  x ≤ 8