Answer
Please see the graph.
Work Step by Step
$x^2-16=0$
$x^2-16+16=0+16$
$x^2 = 16$
$\sqrt {x^2} = \sqrt {16}$
$x=4, -4$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 9 - Quadratic Functions and Equations - Mid-Chapter Quiz - Page 560: 10
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