Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 2 - Review - Exercises - Page 233: 75

Answer

Local minimum is $y=-7$ when $x = -1$

Work Step by Step

The local minimum value of $g(x) = 2x^2 + 4x -5$ can be determined from its vertex Vertex = $\frac {-b}{2a} = \frac{-4}{4} = {-1}$ At x=-1, g(-1) =-7 So the local minimum is $y=-7$ when $x= -1$
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