Exercises: Restrict Domain for Invertibility

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Grade 9·20 problems·~30 min·Common Core Math - HS Functions·standard·hsf-bf-b-4d

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Fluency Practice

$f(x) = x^2$ is restricted to $x \geq 0$ . What is $f^{-1}(x)$ ?

$f^{-1}(x) = x^2$

$f^{-1}(x) = -\sqrt{x}$

$f^{-1}(x) = \sqrt{x}$

$f^{-1}(x) = \pm\sqrt{x}$