Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 12 - Counting and Probability - Cumulative Review - Page 890: 2

Answer

opens up, vertex $(-2,-9)$, axis of symmetry $x=-2$, intercepts $(0,-5),(-5,0),(1,0)$. See graph.

Work Step by Step

Given $f(x)=x^2+4x-5=(x+2)^2-9$, we can identify that the graph opens up, with vertex $(-2,-9)$, axis of symmetry $x=-2$, and intercepts $(0,-5),(-5,0),(1,0)$. See graph.
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