document.write( "Question 402599: Is y=3x-8 parallel, perpendicular, or neither to 3x-y=-1 \n" ); document.write( "
Algebra.Com's Answer #284751 by algebrahouse.com(1659)\"\" \"About 
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\"Is y = 3x - 8 parallel, perpendicular, or neither to 3x - y = -1\"\r
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\n" ); document.write( "\n" ); document.write( "Parallel lines have equal slopes.
\n" ); document.write( "Perpendicular lines have slopes which are negative reciprocals, Ex: 2/3 and -3/2\r
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\n" ); document.write( "\n" ); document.write( "Slope-intercept form is y = mx + b
\n" ); document.write( "m is the slope
\n" ); document.write( "b is the y-intercept\r
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\n" ); document.write( "\n" ); document.write( "In y = 3x - 8
\n" ); document.write( "the slope is 3 {the number in front of the x}\r
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\n" ); document.write( "\n" ); document.write( "In 3x - y = -1
\n" ); document.write( "-y = -3x - 1 {subtracted 3x from both sides to get into slope-intercept form}
\n" ); document.write( "y = 3x + 1 {divided both sides by -1}
\n" ); document.write( "the slope is 3 {the number in front of the x}\r
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\n" ); document.write( "\n" ); document.write( "The slopes are the same in both equations, therefore
\n" ); document.write( "the lines are parallel.
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