Inverses

Inverses

Set of Points

Whenever a function is given as a list of ordered pairs, simply switch the x and y-values to create an inverse.

 

Example Find the inverse of PointsEx1-1, and determine if the inverse is a function.

Step 1. Switch the x and y-coordinates.

PointsEx1-2

Step 2. Determine if the inverse is a function.

Since every input has exactly one output, the inverse is a function. This function is called "one-to-one" which means every x and y value is used only once.

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