Question
Question: The equation of the tangent to the parabola y<sup>2</sup> = 4ax at point (a/t<sup>2</sup>, 2a/t) is...
The equation of the tangent to the parabola y2 = 4ax at point (a/t2, 2a/t) is
A
ty = xt2 + a
B
ty = x + at2
C
y = tx + at2
D
y = tx + (a/t2)
Answer
ty = xt2 + a
Explanation
Solution
eqn of tangent T = 0
y(t2a)=4a(2x+t2a) ̃ ty = xt2 + a