Find the equation of the parabola whose focus is `(1,-1)` and whose vertex is `(2,1)`. Also find the axis and latusrectum.

Explanation

v is the midpoint of AB

`2=(x_1+1)/2,1=(y_1-1)/2`

`x_1=3,y_1=3`

Slope of AB`=(-1-1)/(1-2)=2`

Point of intersection of bisector

slope of desert=-1/2

`(y-3)=-1/2(x-3)`

`x+2y-9=0`

...