Precalculus Examples

Since is on the right side of the equation, switch the sides so it is on the left side of the equation.
To find the coordinate of the vertex, set the inside of the absolute value equal to . In this case, .
Since does not contain the variable to solve for, move it to the right side of the equation by subtracting from both sides.
Replace the variable with in the expression.
Simplify to get .
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Add and to get .
The absolute value is the distance between a number and zero. The distance between and is .
The absolute value vertex is .
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