Find the equation of the straight lines passing through the following pair of point: `(a t_1, a//t_1)` and `(a t_2, a//t_2)`

Explanation

Equation of line is
`y−2at
_1
​
= frac{2at_2-2at_1}{at_2^2-at_1^2}(x-at_1^2)`

`=> (y-2at_1) xx(t_1+t_2)=2x-2at_1^2`

`=>y(t_1+t_2)-2at_1(t_1+t_2)=2x-2at_1^2`

`=>y(t_1+t_2)-2at_1t_2-2x=0`