document.write( "Question 392341: find an equation of the line containing the given pair of points. Express your answer in the form x =a,y=b or y=mx+b (-1,_1) and (9,9) what is an equation of the line? \n" ); document.write( "
Algebra.Com's Answer #278466 by NancyLam(35)\"\" \"About 
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y=mx+b (-1,_1) and (9,9) ( I not sure you write (-1,_1), y=-1 or 1) look like y=-1) I will use y=-1
\n" ); document.write( "m= 9-(-1)/9-(-1)=10/10 =1
\n" ); document.write( "y-9= 1(x-(1))
\n" ); document.write( " y=x-1+9
\n" ); document.write( " y= x+8
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