## Precalculus (10th Edition)

Published by Pearson

# Chapter 3 - Linear and Quadratic Functions - 3.3 Quadratic Functions and Their Properties - 3.3 Assess Your Understanding - Page 145: 7

#### Answer

$-\frac{b}{2a}$

#### Work Step by Step

The x coordinate of the vertex of the parabola $ax^2+bx+c=0$, $a\ne0$ is $-\frac{b}{2a}$.

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