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Inverses

Equation

If given an equation, switch the x-and y-values and solve the resulting equation for y.

Example Find the inverse of the equation: EquationEx1-1

Step 1. Substitute a y for the f(x).

EquationEx1-2

Step 2. Switch the x and y-variables.

EquationEx1-3

Step 3. Solve the equation for y.

EquationEx1-4

Step 4. Substitute f-1(x) for y.

EquationEx1-5