# Chapter 9 - Quadratic Functions and Equations - 9-1 Quadratic Graphs and Their Properties - Lesson Check - Page 549: 4

See the graph

#### Work Step by Step

We are given: $y=-2x^2-1$ Make a table of values. $x=-1 \rightarrow y=-3$ $x=0 \rightarrow y=-1$ $x=1 \rightarrow y=-3$ The vertex is $(0,-1)$. It is a maximum.

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