Precalculus Examples

To find the coordinate of the vertex, set the inside of the absolute value equal to . In this case, .
Subtract from both sides of the equation.
Replace the variable with in the expression.
Simplify .
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Simplify each term.
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Add and .
The absolute value is the distance between a number and zero. The distance between and is .
Add and .
The absolute value vertex is .
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