Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Appendix D - Graphing Techniques - Exercises - Page 448: 12g


Graph "E" is the correct sketching.

Work Step by Step

For $y = -2|x|,$ when $x=1, y=-2, x=0, y=0$ and $x=-1, y=-2$ The curve passes through $(1,-2), (0,0)$ and $(-1,-2)$. Since the graph of $y=-2|x|$ is vertically stretched twice of the graph of $y=|x|$ and reflected across the x-axis, graph "E" is the correct sketching.
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