Key Steps in Finding the Inverse Function of a Quadratic Function Replace f ( x) f (x) f (x) by y y y. Switch the roles of x \color {red}x x and y \color {blue}y y. In

Find the inverse of the quadratic function and graph it. f(x) = x 2. Solution : Replace f(x) by y. y = x 2. Interchange x and y. x = y 2. y 2 = x. Solve for y. Take square root on both sides. y = ±√x. Replace y by f-1 (x). f-1 (x) = ±√x. Graphing

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