Answer
The zeros of a function are the solutions of a quadratic equation (and the x-intercepts of the graph of the related function).
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 - 9-3 Solving Quadratic Equations - Lesson Check - Page 550: 5
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