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grade 11 · A2-012

Find an inverse function

Exchange input and output, then solve for the new output.

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Try with a hintFresh problem · seed 591229939

If \(f(x)=4x+7\), which rule gives \(f^{-1}(x)\)?

forwardmultiply by 4add 7

↔

inversesubtract 7divide by 4

Give me one hint

Undo operations in reverse order.

Choose an answer\(f^{-1}(x)=\frac{x+7}{4}\)\(f^{-1}(x)=\frac{4}{x-7}\)\(f^{-1}(x)=\frac{x-7}{4}\)\(f^{-1}(x)=4x-7\)

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Math Lab is a working name for Ready Rung's separate math-learning product. Guided success and independent evidence are reported separately.