document.write( "Question 78572: Find the slope of any line perpendicular to the line through points (0, 5) and
\n" ); document.write( "(-3, -4). \n" ); document.write( "

Algebra.Com's Answer #56382 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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Find the slope of any line perpendicular to the line through points (0, 5) and
\n" ); document.write( "(-3, -4).
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\n" ); document.write( "Find the slope using the slope equation: m = $\"%28%28y2-y1%29%29%2F%28%28x2-x1%29%29\"$
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\n" ); document.write( "Let x1 = 0, y1 = 5; x2 = -3, y2 = -4
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\n" ); document.write( "m = $\"%28%28-4-5%29%29%2F%28%28-3-0%29%29\"$ = $\"%28%28-9%29%29%2F%28%28-3%29%29\"$ = +3
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\n" ); document.write( "The relationship of the slopes of perpendicular lines: m1 * m2 = -1
\n" ); document.write( "Let m1 = +3, find m2
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\n" ); document.write( "3(m2) = -1
\n" ); document.write( "m2 = $\"-1%2F3\"$ is the slope of a line perpendicular to the line of the given points
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\n" ); document.write( "It's good idea to memorize these two simple formulas, you will be using them alot \n" ); document.write( "

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