document.write( "Question 106121This question is from textbook algebra 2
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Algebra.Com's Answer #77736 by HyperBrain(694)\"\" \"About 
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\"graph%281000%2C1000%2C-20%2C20%2C-20%2C20%2Cx%2B4%2C-x%2B4%29\"\r
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\n" ); document.write( "\n" ); document.write( "They are perpendicular.!\r
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\n" ); document.write( "\n" ); document.write( "Power up,
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