Precalculus Examples

Set the denominator in equal to to find where the expression is undefined.
Add to both sides of the equation.
The domain is all values of that make the expression defined.
Interval Notation:
Set-Builder Notation:
The range is the set of all valid values. Use the graph to find the range.
Interval Notation:
Set-Builder Notation:
Determine the domain and range.
Domain:
Range:
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