Precalculus (10th Edition)

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

Chapter 2 - Functions and Their Graphs - 2.3 Properties of Functions - 2.3 Assess Your Understanding - Page 78: 5


x-intercepts: $x=-3,3$ y-interceptL y=-9$

Work Step by Step

To find the x-intercept, plug in 0 for y then solve for $x$: $0=x^{2}-9$ $0=(x+3)(x-3)$ $x=3 ,-3$ To find the y-intercept, plug in 0 for x then solve for $y$: $y=0^{2}-9$ $y=-9$
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