document.write( "Question 173789: Find the slope, if it exsists, of the line containing the pair of points.
\n" ); document.write( "(3,10) and (9,-5)
\n" ); document.write( "I thought maybe the formula to use would be y-y=m(x-x) but I am not sure. \n" ); document.write( "

Algebra.Com's Answer #128654 by Mathtut(3670) $\"\"$ $\"About$

You can put this solution on YOUR website!
you are correct in the formula it is y-k=m(x-h) where m is the slope and (h,k) is any point on the line.
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\n" ); document.write( "But first we must find the slope which is change in y over change in x.
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\n" ); document.write( "m=(-5-10)/(9-3)=-15/6= $\"highlight%28-5%2F2%29\"$
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\n" ); document.write( "lets use (9,-5)as our point
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\n" ); document.write( "y-(-5)=(-5/2)(x-9)
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\n" ); document.write( "y+5=(-5/2)x+45/2....lets multiply all terms by 2
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\n" ); document.write( "2y+10=-5x+45
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\n" ); document.write( " $\"highlight%285x%2B2y=35%29\"$ \n" ); document.write( "

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