Big Ideas Math - Algebra 1, A Common Core Curriculum

Published by Big Ideas Learning LLC
ISBN 10: 978-1-60840-838-2
ISBN 13: 978-1-60840-838-2

Chapter 8 - Graphing Quadratic Functions - 8.5 - Using Intercept Form - Monitoring Progress - Page 453: 9

Answer

$y=x^2-1$

Work Step by Step

Use the intercept form: $$y=a(x-p)(x-q)$$ Substitute $p=-1$, $q=1$ and let $a=1$: $$y=1(x-(-1))(x-1)$$ $$y=(x+1)(x-1)$$ $$y=x^2-1$$
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