document.write( "Question 499094: i need help solving some problems, so i know how to do this kind of thing, i have some examples (6,r),(2,5);slope=-3
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Algebra.Com's Answer #337462 by ankor@dixie-net.com(22740)\"\" \"About 
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i need help solving some problems, so i know how to do this kind of thing,
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\n" ); document.write( "Know the slope formula: m = \"%28y2-y1%29%2F%28x2-x1%29\"
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\n" ); document.write( "(6,r),(2,5);slope=-3
\n" ); document.write( "we assign the values as follows
\n" ); document.write( "x1 = 6; y1 = r
\n" ); document.write( "x2 = 2; y2 = 5
\n" ); document.write( "m = -3
\n" ); document.write( "From this we have
\n" ); document.write( "\"%285-r%29%2F%282-6%29\" = -3
\n" ); document.write( "\"%285-r%29%2F%28-4%29\" = -3
\n" ); document.write( "multiply both sides by -4, gets rid of the denominator
\n" ); document.write( "5 - r = -4(-3)
\n" ); document.write( "-r = +12 - 5
\n" ); document.write( "-r = 7
\n" ); document.write( "r = -7; multiplied both sides by -1
\n" ); document.write( "you can check this in the original equation using this value for r, ensure it equals -3
\n" ); document.write( "Remember minus a minus, is a plus
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\n" ); document.write( "(1,-4),(r,2);slope=-3/2
\n" ); document.write( "x1 = 1; y1 = -4
\n" ); document.write( "x2 = r; y2 = 2
\n" ); document.write( "\"%282-%28-4%29%29%2F%28r-1%29\" = \"-3%2F2\"
\n" ); document.write( "\"%282%2B4%29%2F%28r-1%29\" = \"-3%2F2\"
\n" ); document.write( "\"6%2F%28r-1%29\" = \"-3%2F2\"
\n" ); document.write( "multiply both sides by 2(r-1), to get rid of the denominators, results:
\n" ); document.write( "2(6) = -3(r-1)
\n" ); document.write( "12 = -3r + 3
\n" ); document.write( "3r = 3 - 12
\n" ); document.write( "3r = -9
\n" ); document.write( "r = \"%28-9%29%2F3\"
\n" ); document.write( "r = -3
\n" ); document.write( "Check this also in the original equation
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\n" ); document.write( "(-4,8), (-6,r):slope=3/2
\n" ); document.write( "x1=-4; y1=8
\n" ); document.write( "x2=-6; y2=r
\n" ); document.write( "\"%28r-8%29%2F%28-6-%28-4%29%29\" = \"3%2F2\"
\n" ); document.write( "\"%28r-8%29%2F%28-6%2B4%29\" = \"3%2F2\"
\n" ); document.write( "\"%28r-8%29%2F%28-2%29\" = \"3%2F2\"
\n" ); document.write( "Multiply by -2, results
\n" ); document.write( "r - 8 = -1(3)
\n" ); document.write( "r = -3 + 8
\n" ); document.write( "r = 5
\n" ); document.write( "to check this
\n" ); document.write( "\"%285-8%29%2F%28-2%29\" = \"3%2F2\"
\n" ); document.write( "\"%28-3%29%2F%28-2%29\" = \"3%2F2\"
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