document.write( "Question 274720: I need to find an equation of the line containing the given pair of points; (-3,-1) and (-9,-6). The equation of the line in the slope-intercept is y=?\r
\n" ); document.write( "\n" ); document.write( "m=y2-y1= -6-(-1)= -5
\n" ); document.write( " x2-x1 -9-(-3) -6
\n" ); document.write( "y-(-1)=m(x-x1)
\n" ); document.write( "y-(-1)=-5(x-(-3))
\n" ); document.write( " -6
\n" ); document.write( "y-(-1)=-5x-5
\n" ); document.write( " -6 2
\n" ); document.write( "y=-5 -3
\n" ); document.write( " 6x 2
\n" ); document.write( "Apparently I did this wrong somewhere and I am not sure what I did wrong. Can someone help me please.
\n" ); document.write( "

Algebra.Com's Answer #200450 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
I need to find an equation of the line containing the given pair of points;
\n" ); document.write( "(-3,-1) and (-9,-6).
\n" ); document.write( "The equation of the line in the slope-intercept is y= mx + b
\n" ); document.write( "-------------------
\n" ); document.write( "To get the equation you only need to determine \"m\" and \"b\";
\n" ); document.write( "---
\n" ); document.write( "m= (-6--1)/(-9--3) = -5/-6 = 5/6
\n" ); document.write( "---------------------------------
\n" ); document.write( "Now solve for \"b\":
\n" ); document.write( "You know m = 5/6 and you know y=-1 when x = -3:
\n" ); document.write( "Using the form y = mx+b, solve for \"b:
\n" ); document.write( "-1 = (5/6)(-3) + b
\n" ); document.write( "-1 = -5/2 + b
\n" ); document.write( "b = -1 + (5/2)
\n" ); document.write( "b = 3/2
\n" ); document.write( "-----------------
\n" ); document.write( "Write the equation:
\n" ); document.write( "y = (5/6)x + (3/2)
\n" ); document.write( "=========================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
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