document.write( "Question 567591: Obtain an equation of a line with point -3,-2 & 1,7.show solution pls.thank you \n" ); document.write( "
Algebra.Com's Answer #366635 by nerdybill(7384)\"\" \"About 
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Obtain an equation of a line with point -3,-2 & 1,7
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\n" ); document.write( "First, determine slope between the two points:
\n" ); document.write( "m(slope) = (y2 - y1)/(x2 - x1)
\n" ); document.write( "m(slope) = (7 - (-3))/(1 - (-3))
\n" ); document.write( "m(slope) = (7 + 3)/(1 + 3)
\n" ); document.write( "m(slope) = 10/4
\n" ); document.write( "m(slope) = 5/2
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\n" ); document.write( "Using the slope (5/2) and one point (1,7) plug into \"point-slope\" form:
\n" ); document.write( "y - y1 = m(x - x1)
\n" ); document.write( "y - 7 = (5/2)(x - 1)
\n" ); document.write( "y - 7 = (5/2)x - 5/2
\n" ); document.write( "y = (5/2)x - 5/2 + 7
\n" ); document.write( "y = (5/2)x - 5/2 + 14/2
\n" ); document.write( "y = (5/2)x + 9/2 (this is what they're looking for in \"slope-intercept\" form)\r
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