Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 3 - Linear and Quadratic Functions - 3.3 Quadratic Functions and Their Properties - 3.3 Assess Your Understanding - Page 145: 10



Work Step by Step

If the discriminant is $0$, then the the quadratic function has $1$ real number solution. The quadratic function's graph will touch the $x$-axis at the vertex of the graph because the equation $f(x)=0$ will only have $1$ solution. Hence, the given statement is true.
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