document.write( "Question 109923: Hello
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\n" ); document.write( "\n" ); document.write( "Write the equation of a\r
\n" ); document.write( "\n" ); document.write( "Vertical line through C (-1,2)
\n" ); document.write( "and horizontal line through D (1,-3)\r
\n" ); document.write( "\n" ); document.write( "thankyou for any help comming towards me
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Algebra.Com's Answer #80098 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
a verticle line passing through x=-1 has no slope.
\n" ); document.write( "this equation is x=-1.
\n" ); document.write( "a horizontal line through y=-3 has 0 as it's slope.
\n" ); document.write( "this equation is y=-3.
\n" ); document.write( "proof is in the graphing.
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