document.write( "Question 1080236: A line has a slope of 3 and contains the point (-1, -8). Which equation represents the line?
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Algebra.Com's Answer #694426 by LinnW(1048)\"\" \"About 
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Using the basic formula y = Mx + b, using the point (-1,-8),
\n" ); document.write( "we have x = -1 , y = -8 and the slope M = 3.
\n" ); document.write( "Substituting we have -8 = 3(-1) + b
\n" ); document.write( "-8 = -3 + b
\n" ); document.write( "add 3 to each side
\n" ); document.write( "-5 = b
\n" ); document.write( "So y = Mx + b becomes y = 3x + (-5) or y = 3x -5
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