# What are the excluded values for #y=(x+1)/(x-3)#?

Excluded values:

Given

since division by zero is undefined, we must exclude

Re-writing the given equation:

and (again) since division by zero is undefined, we must exclude:

This can also be seen graphically by plotting the given equation:

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The excluded value for y=(x+1)/(x-3) is x=3.

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