Chapter 4 Quadratic Functions and Factoring - Prerequisite Skills - Page 234: 9

See the graph

Work Step by Step

$y=-2|x|$ Make a list of values: $x=-2\rightarrow y=-4$ $x=-1\rightarrow y=-2$ $x=1\rightarrow y=-2$ $x=2\rightarrow y=-4$ The graph of $y=-2|x|$ is the graph of $y= |x|$ uupside down, as shown in the diagram. The vertex of $y=-2|x|$ is $(0,0)$

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