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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document.write( "(1,-4),(r,2);slope=-3/2 (-4,8), (-6,r):slope=3/2
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Algebra.Com's Answer #337462 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! i need help solving some problems, so i know how to do this kind of thing, \n" ); document.write( ": \n" ); document.write( "Know the slope formula: m = \n" ); document.write( ": \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( " \n" ); document.write( " \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 \n" ); document.write( ": \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( " \n" ); document.write( " \n" ); document.write( " \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 = \n" ); document.write( "r = -3 \n" ); document.write( "Check this also in the original equation \n" ); document.write( ": \n" ); document.write( ": \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( " \n" ); document.write( " \n" ); document.write( " \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( " \n" ); document.write( " |