document.write( "Question 166961: I keep getting the same wrong answer:
\n" ); document.write( "(-5,-6)(-3,-1) \n" ); document.write( "

Algebra.Com's Answer #122979 by checkley77(12844) $\"\"$ $\"About$

You can put this solution on YOUR website!
(-5,-6)(-3,-1)
\n" ); document.write( "Y=mX+b
\n" ); document.write( "First we find the slope (m):
\n" ); document.write( "m=(y2-y1)/(x2-x1)
\n" ); document.write( "m=(-1+6)/(-3+5)
\n" ); document.write( "m=5/2
\n" ); document.write( "m=2.5 is the slope
\n" ); document.write( "Now replace the x & y terms by one set of (x,y) values & solve for the y intercept(b).
\n" ); document.write( "-6=2.5*-5+b
\n" ); document.write( "-6=-12.5+b
\n" ); document.write( "b=-6+12.5
\n" ); document.write( "b=6.5
\n" ); document.write( "Thus the equation for a line passing theough (-5,-6) & (-3,-1) is:
\n" ); document.write( "y=2.5x+6.5
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+2.5x+%2B6.5%29+\"$ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 2.5x +6.5).
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