Find an Inverse Equation Algebraically. To find an inverse equation algebraically: 1.Switch the x and y in the equation. 2.Solve for y.

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Presentation transcript:

Find an Inverse Equation Algebraically

To find an inverse equation algebraically: 1.Switch the x and y in the equation. 2.Solve for y.

Algebraically Finding an Inverse Find the inverse of the following: Switch x and y Solve for y Do not write y -1 Make sure to check with a table and graph on the calculator.

Algebraically Finding an Inverse Find the inverse of the following: Make sure to check with a table and graph on the calculator. Switch x and y Solve for y Because x 2 =9 has two solutions: 3 & -3

Algebraically Finding an Inverse Find the inverse of the following: Switch x and y Really y = Solve for y Make sure to check with a table and graph on the calculator.

Algebraically Finding an Inverse Find the inverse of the following: Make sure to check with a table and graph on the calculator. Switch x and y Really y = Solve for y Restrict the Domain! Full Parabola (too much) Only Half Parabola x=3