document.write( "Question 105886: Find the slope of any line perpendicular to the line through points (0,5) and (-3, -4) \n" ); document.write( "
Algebra.Com's Answer #77162 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 (-3, -4)
\n" ); document.write( "First find the slope of the line thru the given points:
\n" ); document.write( "Use the slope formula: m = \"%28%28y2+-+y1%29%29%2F%28%28x2+-+x1%29%29\"
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\n" ); document.write( "In your problem: x1 = 0, y1 = 5; x2 = -3, y2 = -4
\n" ); document.write( "So you have:
\n" ); document.write( "m = \"%28%28-4+-+5%29%29%2F%28%28-3+-+0%29%29\" = \"%28-9%29%2F%28-3%29\" = +3 is the slope (m1)
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\n" ); document.write( "The relationship of slopes of perpendicular lines can be given as:
\n" ); document.write( "m1 * m2 = -1
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\n" ); document.write( "3 * m2 = -1
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\n" ); document.write( "m2 = \"-1%2F3\" is the slope of the perpendicular line
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\n" ); document.write( "Could you follow this OK? Any questions?
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