Exercises: Restrict Domain for Invertibility

Work through each section in order. Show your work where indicated.

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

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Recall / Warm-Up

Which of the following functions fails the Horizontal Line Test on its full domain?

$f(x) = 2x + 3$

$f(x) = x^2$

$f(x) = \sqrt{x}$

$f(x) = \frac{1}{x}$