Mathematics · 2022
JEE Main · 28 June 2022, Shift 2 · Q15
If vertex of a parabola is (2,-1) and the equation of its directrix is 4 x-3 y=21, then the length of its latus rectum is:
If vertex of a parabola is $\displaystyle (2,-1)$ and the equation of its directrix is $\displaystyle 4 x-3 y=21$, then the length of its latus rectum is :
Official answer
(2)
$\displaystyle 8$
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JEE Main 2022 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.