document.write( "Question 305119: what is the slope intercept equation for the line with the given slope that contains the points\r
\n" ); document.write( "\n" ); document.write( "m=-3;(1,-5)\r
\n" ); document.write( "\n" ); document.write( "I know that the answer is -3-2 but how do I reach that answer? \n" ); document.write( "

Algebra.Com's Answer #218465 by dabanfield(803) $\"\"$ $\"About$

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what is the slope intercept equation for the line with the given slope that contains the points
\n" ); document.write( "m=-3;(1,-5)
\n" ); document.write( "I know that the answer is -3-2 but how do I reach that answer?\r
\n" ); document.write( "\n" ); document.write( "The slope intercept form of a line is y = m*x + b where m is the slope and b is the value of y where the line intercepts the y-axis (that is when x=0). \r
\n" ); document.write( "\n" ); document.write( "Since m = -3 we have:\r
\n" ); document.write( "\n" ); document.write( "1.) y = -3*x + b.\r
\n" ); document.write( "\n" ); document.write( "The line passes through the point (1,-5) so when x = 1, y = -5. Substituting these values for x and y in equation 1.) we have:\r
\n" ); document.write( "\n" ); document.write( "-5 = -3*1 + b\r
\n" ); document.write( "\n" ); document.write( "-5 = -3 + b
\n" ); document.write( "b = -5 + 3 = -2\r
\n" ); document.write( "\n" ); document.write( "With b = -2 equation 1.) becomes:\r
\n" ); document.write( "\n" ); document.write( "y = -3x - 2 \n" ); document.write( "

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