document.write( "Question 1031323: Write the equation of a line that goes through the points (-1,-5) and (4,10) \n" ); document.write( "
Algebra.Com's Answer #646660 by Cromlix(4381)\"\" \"About 
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hi there,
\n" ); document.write( "Gradient = y2 - y1/x2 - x1
\n" ); document.write( "Gradient =10 -(-5)/4 -(-1)
\n" ); document.write( "gradient = 10 + 5/4 + 1
\n" ); document.write( "Gradient = 15/5
\n" ); document.write( "Gradient = 3
\n" ); document.write( "Using line equation:-
\n" ); document.write( "y - b = m(x - a)
\n" ); document.write( "m = 3; (4,10) = (a,b)
\n" ); document.write( "y - 10 = 3(x - 4)
\n" ); document.write( "y - 10 = 3x - 12
\n" ); document.write( "y = 3x - 12 + 10
\n" ); document.write( "y = 3x - 2
\n" ); document.write( "Hope this helps:-)
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