Answer
See graph.
Work Step by Step
To obtain the graph of $y=2x^2+4$ from $y=x^2$, stretch vertically by a factor of $2$, then shift 4 units up. See graph.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 2 - Linear and Quadratic Functions - Section 2.4 Properties of Quadratic Functions - 2.4 Assess Your Understanding - Page 157: 20
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