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Remember that the slope-intercept form is when the line is represented in the form:
\n" ); document.write( "Y = mx + b, where m is the slope and b is the y-intercept.
\n" ); document.write( "Now let’s figure what those values are:
\n" ); document.write( "First of all, your slope (m) is the ratio of the difference in the y terms divided by the difference in the x terms, or, as some teachers say, “the rise over the run”.
\n" ); document.write( "You have your two points, (-1,5), (-3,-2)
\n" ); document.write( "The difference in your y terms is (5 – (-2)) = 7
\n" ); document.write( "The difference in your x terms is ((-1) – (-3)) = 2
\n" ); document.write( "So, your slope (m) is 7/2.
\n" ); document.write( "Now plug that term into the generic slope-intercept form of the equation:
\n" ); document.write( "y = (7/2)x + b.
\n" ); document.write( "We now have to solve for b, and we have two different point coordinates to choose from. I’ll use (-1, 5)
\n" ); document.write( "Putting (-1) in for x, and 5 in for y, we get:
\n" ); document.write( "5 = (7/2)(-1) + b, and solve for b. This gives us that b = 17/2.
\n" ); document.write( "So the equation of the line for any point on the line is:
\n" ); document.write( "y = (7/2)x + (17/2).\r
\n" ); document.write( "\n" ); document.write( "Good luck
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