Conic Sections Question 499
Question: If the parabola $ y^{2}=4ax $ passes through (-3, 2), then length of its latus rectum is
[RPET 1986, 95]
Options:
2/3
1/3
4/3
4
Show Answer
Answer:
Correct Answer: C
Solution:
The point $ (-3,2) $ will satisfy the equation $ y^{2}=4ax $
therefore $ 4=-12a $
therefore $ 4a=\frac{4}{3} $ , (Taking positive sign).
BETA
