document.write( "Question 1140689: Determine if the graph is symmetric about the x-axis, the y-axis, or the origin.
\n" ); document.write( " r = 8 cos 3θ
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Algebra.Com's Answer #761406 by MathLover1(20850)\"\" \"About 
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Determine if the graph is symmetric about the x-axis, the y-axis, or the origin.\r
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\n" ); document.write( "\n" ); document.write( "\"r+=+8cos+%283theta%29\"\r
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\n" ); document.write( "\n" ); document.write( "about the x-axis:\r
\n" ); document.write( "\n" ); document.write( " It is \"not\" symmetric about the \"x\"-axis because \"cos%283theta%29+%3C%3E+-cos%283theta%29\".\r
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\n" ); document.write( "\n" ); document.write( "about the y-axis:\r
\n" ); document.write( "\n" ); document.write( "It \"highlight%28is%29\" symmetric about the \"y\"-axis because \"highlight%28cos%283theta%29=cos%283%28-theta%29%29%29\".\r
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\n" ); document.write( "\n" ); document.write( "about origin:
\n" ); document.write( " for \"r=8cos+%283theta%29+\" plug in \"r=-r\"\r
\n" ); document.write( "\n" ); document.write( "\"-r=8cos%283theta%29\"\r
\n" ); document.write( "\n" ); document.write( "\"r=-8cos%283theta%29\"=>\r
\n" ); document.write( "\n" ); document.write( "it is\"+not\" symmetric about the \"origin\" because \"cos%283theta%29%3C%3E-cos%283theta%29\". \r
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\n" ); document.write( "\n" ); document.write( " \"+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+8cos+%283x%29%29+\"\r
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