x=t2+ 1 & y = 2t +1. Tha cartesian equation of its directrix is
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
x=t2+ 1 & y = 2t +1. Tha cartesian equation of its directrix is
x=t2+ 1 & y = 2t +1. Tha cartesian equation of its directrix is
We have the equations
x = t2 +1 …(1)
y = 2t + 1 …(2)
From (1) and (2), we get
(y – 1)2 = 4 (x – 1) …(3)
Let Y = y – 1 and X = x – 1
Then from equation (3) we have
⇒ Y2 = 4X
Equation of the directrix for parabola Y2 = 4X is:
X = –1
⇒ x – 1 = –1
⇒ x = 0
This is the required equation of directrix.