Question

Find the relation b/w x and y if the points A(x,y) ,B(-5,7 ) and C(-4,5) are collinear

Answer 1

As they are collinear the line passing through B and C become the relation.
slope=-2
equation becomes -2(x+5)=y-7
2x+y+3=0
the relation is 2x+y+3=0