document.write( "Question 71064: Write the equation of the line that passes through (-2,5) and (7,10) \n" ); document.write( "
Algebra.Com's Answer #50804 by checkley75(3666)\"\" \"About 
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first we find the slope (m)
\n" ); document.write( "(y2-y1)/(x2-x1)
\n" ); document.write( "(10-5)/(7+2)
\n" ); document.write( "5/9 is the slope.
\n" ); document.write( "now substitute one set of (x,y) values in the equation Y=MmX+b & solve for b
\n" ); document.write( "5=5/9*-2+b
\n" ); document.write( "5=-10/9+b
\n" ); document.write( "b=5+10/9
\n" ); document.write( "b=(45+10)/9
\n" ); document.write( "b=55/9
\n" ); document.write( "thus this line equation is
\n" ); document.write( "y=5/9x+55/9
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