Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 4 - An Introduction to Functions - 4-4 Graphing a Function Rule - Practice and Problem-Solving Exercises: 26

Answer

Graph:
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Work Step by Step

The graph of y=|x| is graphed below and to graph the function y=2 |x| we need to vertically stretch the graph by a factor of two and to do so we multiply each y-value times 2 while keeping the x-value same. So for example, the point (1,1) of function y=|x| becomes (1,2) for the function y=2 |x| as the y-value is doubled.
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