AP EAMCET · Maths · Parabola
The directrix of the parabola is _________
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
The directrix of the parabola 2y2+25x=0 is Now, 2y2=-25x y2=-252x y2=-44(252x) y2=-4(258)x Comparing y2=-40x, we get where, a=258 The directrix of a parabola, ⇒x-258=0 ⇒8x-25=0.
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