TS EAMCET 18-July-2022 Shift 1 Solved Paper

Given, y2=16x
a=4
Let B be (x1,12) lies on parabola.
‌ (12) ‌‌2=16x1⇒x1=‌

12×12

16

=9
Point B(9,12)
Equation of focal chord passing through (4,0) and (2,2)
y−0=‌

2−0

2−4

(x−4)
y=−x+4
x+y=4‌‌‌⋅⋅⋅⋅⋅⋅⋅(i)
Equation of double ordinate : x=9‌‌‌⋅⋅⋅⋅⋅⋅⋅(ii)
Point of intersection of Eqs. (i) and (ii), (9,−5).