document.write( "Question 174857: A quiz question concerning finding an equation of a parallel line containing the points (2,-1) and parallel to the line 9x-3y=5. I found the slope of both lines to be -3. But their answer (which is y=-3x - 7) confused me. How did they arrive at -7? I used the Point-Slope Equation & Slope Intercept Equation. For example, using the point-slope equation: (y-y1)= m(x-x1)=(y-(-1)) = -3(x - 2). I cannot find how this results in a -7 (or y= -3x - 7) when you do the calculation. Please show me how. Thanks, Charlie \n" ); document.write( "
Algebra.Com's Answer #129922 by actuary(112)\"\" \"About 
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The equation for the given line is 9x-3y=5. Rewriting this in standard form we have -3y=-9x+5 or\r
\n" ); document.write( "\n" ); document.write( " y =3x-5/3 so the slope is 3\r
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\n" ); document.write( "\n" ); document.write( " For the line to be determined, using the point slope formula, we have\r
\n" ); document.write( "\n" ); document.write( " y-(-1))=3*(x-2)\r
\n" ); document.write( "\n" ); document.write( " This can be simplified to y-(-1)+(-1)) = 3x-6+(-1)\r
\n" ); document.write( "\n" ); document.write( " So the equation is y=3x-7\r
\n" ); document.write( "\n" ); document.write( "I hope that this helps
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