Question

Which of the following are not parametric coordinates of any point on the parabola y² = 4ax?

Options

• (at², 2at)

• `(am^2, (2a)/m)`

• `(a/m^2, (2a)/m)`

• (am², –2am)

Answer 1

`bb((am^2, (2a)/m)`

Explanation:

y² = 4ax

The parametric co-ordinate of the parabola is given by (at², 2at) where t is parameter also we know that t = –m, therefore (am², –2am) is also parametric co-ordinates And `(a/m^2, (2a)/m)` also the parametric co-ordinates. But `(am^2, (2a)/m)` is not a parametric co-ordinate of the parabola.