Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Common Core End-of-Course Assessment - Page 794: 20



Work Step by Step

x=-$\frac{b}{2a}$ gives the axis of symmetry.You are given a=2,b=4,c=-5.Substitute in order to solve: x=-$\frac{b}{2a}$ x=-$\frac{4}{2(2)}$=-$\frac{4}{4}$=-1 The answer is A since x=-1
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