Find a relation between x and y, if the points A(x, y), B(-5, 7) and C(-4, 5) are collinear.
Let `A(x_1=x,y_1=y),B(x_2=-5,y_2=7) and C (x_3 =-4, y_3=5)` be the given points
The given points are collinear if
`⇒ 2x +y+3=0`
Hence, the required relation is 2x +y+3 =0