Question

A line intersects the Co-ordinate axes at P and Q respectively.If (2,-5) is the mid point of PQ, find P and Q.

Answer 1

let points cutted by line on coordinate axes be (0,a) on y axis and (b, 0)
midpoint=(0+b/2,a+0/2)=(b/2,a/2)
compare with (2,-5)
a=-10,b=4
points=(0,-10),(4,0)