PP Section 1.7 - Symmetry and Graphs Circles A graph is...

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Symmetry and Graphs Circles
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A graph is said to be symmetric with respect to the x -axis if, for every point ( x , y ) on the graph, the point ( x , -y ) is also on the graph. If a graph is symmetric with respect to the x -axis and the point (3, 5) is on the graph, then (3, -5) is also on the graph.
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Example Example 2 y x =
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A graph is said to be symmetric with respect to the y -axis if, for every point ( x , y ) on the graph, the point (- x , y ) is also on the graph. If a graph is symmetric with respect to the y -axis and the point (3, 5) is on the graph then (-3, 5) is also on the graph.
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EXAMPLE EXAMPLE 2 x y =
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A graph is said to be symmetric with respect to the origin if, for every point ( x , y ) on the graph, the point (- x , - y ) is also on the graph. If a graph is symmetric with respect to the origin and the point (3, 5) is on the graph then (-3, -5) is also on the graph.
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Example Example 3 x y =
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Test for Symmetry The original equation should NOT change The original equation should NOT change
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This note was uploaded on 01/22/2011 for the course MATH 2 taught by Professor Gardner during the Fall '08 term at Irvine Valley College.

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PP Section 1.7 - Symmetry and Graphs Circles A graph is...

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