document.write( "Question 357336: (4,-7) (8,-1) \n" ); document.write( "

Algebra.Com's Answer #255195 by checkley77(12844) $\"\"$ $\"About$

You can put this solution on YOUR website!
y=Mx+B WHERE M=SLOPE & B= THE y INTERCEPT.
\n" ); document.write( "(4,-7) (8,-1)
\n" ); document.write( "m=(Y2-Y1)/X2-X1)
\n" ); document.write( "m=(-1+7)/(8-4)=6/4=1.5 ans. for the slope.
\n" ); document.write( "-7=1.5*4+b
\n" ); document.write( "-7=6+b
\n" ); document.write( "b=-7-6
\n" ); document.write( "b=-13 ans. for the Y intercept.
\n" ); document.write( "Y=1.5X-13
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+10%2C+-15%2C+10%2C+1.5x+-13%29+\"$ (graph 300x200 pixels, x from -6 to 10, y from -15 to 10, 1.5x -13). \n" ); document.write( "

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