Back to Solve for inverse function — Problem 2 · Task Set 39

HSF.BF.B.4.a Tutor Intake — Finding and Using Inverse Functions

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Grade 9·11 problems·~14 min·Common Core Math - HS Functions·standard·hsf-bf-b-4a

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Procedures

Using the swap-and-solve method, which expression gives $f^{-1}(x)$ for
$f(x) = \frac{x - 4}{3}$ ?

$\frac{3}{x - 4}$

$3x + 4$

$\frac{x + 4}{3}$

$3x - 4$