document.write( "Question 550326: Please help me find the standard form of the equation of the line that is perpendicular to
\n" ); document.write( " y=7/2x-5 and contains (-3,-7)
\n" ); document.write( "A.7x+2y=21
\n" ); document.write( "B.3x-7y=21
\n" ); document.write( "C.2x-7y=55
\n" ); document.write( "D.2x+7y=-55
\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #358616 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Please help me find the standard form of the equation of the line that is perpendicular to y=7/2x-5 and contains (-3,-7)
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\n" ); document.write( "The given line has slope = 7/2
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\n" ); document.write( "Any perpendicular line must have slope = -2/7
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\n" ); document.write( "Form:
\n" ); document.write( "Solve for \"b\":
\n" ); document.write( "y = mx+b
\n" ); document.write( "-7 = (-2/7)(-3)+b
\n" ); document.write( "---
\n" ); document.write( "-7 = 6/7 + b
\n" ); document.write( "b = -55/7
\n" ); document.write( "----
\n" ); document.write( "Equation:
\n" ); document.write( "y = (-2/7)x-(55/7)
\n" ); document.write( "7y = -2x - 55
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "A.7x+2y=21
\n" ); document.write( "B.3x-7y=21
\n" ); document.write( "C.2x-7y=55
\n" ); document.write( "D.2x+7y=-55\r
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