document.write( "Question 551115: Which two lines are parallel?\r
\n" ); document.write( "\n" ); document.write( "A. 5y = –3x – 5
\n" ); document.write( "B. 5y = –5 – 3x
\n" ); document.write( "C. 3y – 2x = –1\r
\n" ); document.write( "\n" ); document.write( " Is the line through points P(–7, 2) and Q(7, –6) parallel to the line through points R(–1, –5) and S(–3, –1)? Explain.
\n" ); document.write( "

Algebra.Com's Answer #359410 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Which two lines are parallel?\r
\n" ); document.write( "\n" ); document.write( "A. 5y = –3x – 5
\n" ); document.write( "B. 5y = –5 – 3x
\n" ); document.write( "C. 3y – 2x = –1
\n" ); document.write( "-------------------
\n" ); document.write( "A & B are the same equation. Not parallel, but coincident.
\n" ); document.write( "--------------------\r
\n" ); document.write( "\n" ); document.write( " Is the line through points P(–7,2) and Q(7,–6) parallel to the line through points R(–1,–5) and S(–3,–1)? Explain.
\n" ); document.write( "------------
\n" ); document.write( "Find the slope of each pair.
\n" ); document.write( "Slope, m = diffy/diffx
\n" ); document.write( "For P & Q, = (2 - (-6))/(-7 - 7) = 8/-14
\n" ); document.write( "m = -4/7
\n" ); document.write( "---------
\n" ); document.write( "Find the slope for R & S.
\n" ); document.write( "If the slope is the same, they're parallel.
\n" ); document.write( "
\n" );