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Which function below is the inverse of f(x) = x² - 9?

User Adassko
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FOR EQUATION INVERSES IT MEANS ... x and y swap positions.


x = (f(x))^(2) - 9 \\ (f(x))^(2) = x + 9 \\ \sqrt{(f(x))^(2) } = √(x + 9) \\ f(x) = √(x + 9)

ATTACHED IS THE SOLUTION.

User Robert Altena
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