Mathematics - Parabola Question with Solution | TestHub

MathematicsParabolaMiscellaneous/MixedMedium2 min

MathematicsMediumsingle choice

If $x + k = 0$ is equation of directrix to parabola $y^{2} = 8 (x + 1)$ then $k =$

Options:

Answer:

C

Solution:

Focus is $(1, 0)$ third vertex is $(- 1, 0)$ . Hence directrix is $x + 3 = 0$

Stream:JEESubject:MathematicsTopic:ParabolaSubtopic:Miscellaneous/Mixed

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