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Beginning Pre-Calculus for Game Developers by Boris Meltreger, John P. Flynt

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Graphs of Inverses

When you work with inverse values, such as , you create a graph that is undefined at x = 0. The domain of such graphs consists of all real numbers except 0. Zero is excluded because division by 0 is not defined. For this reason, when you use Visual Formula to generate a graphical representation of inverse values, you must use the Exclude option to prevent calculations that might involve using 0 as the divisor.

Note

Visual Formula issues a warning if you set up an equation that allows you to divide by 0. To adjust for this situation, use the Exclude option to restrict the range of values you allow for the calculation.

To employ ...

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