Answers

2016-08-01T10:48:01+08:00
Slope (inter form) ; y=mx+b;

1.) find m (slope) either of the two points..

m= y2-y1/[x2-x1;
m=7-6/[8-5]=1/3;

@ pt(5,6)
y-y1=m(x-x1);
y-6=1/3(x-5);
3y-18=x-5;
x-3y+13=0  ans..
@ pt(8,7)
y-7 =1/3(x-8);
3y-21=x-8;
x-3y +13=0...ans
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