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6-84.

What is the equation for the inverse of the function f(x) = + 1? Sketch the graph of both the original and the inverse functions. Homework Help ✎

Change f(x) to y. Then interchange the x and y.

Subtract 1 from each side, and then square each side to get rid of the square root.

Cancel the 4 in the numerator and denominator, then add 3 to each side of the equation.

Are there any domain restrictions?