Find the focus of parabola with equation y^2=-100x.(a) (0, 25)(b) (0, -25)(c) (25, 0)(d) (-25, 0)This question was posed to me at a job interview.Enquiry is from Conic Sections topic in section Conic Sections of Mathematics – Class 11

Find the focus of parabola with equation y^2=-100x.(a) (0, 25)(b) (0,

1.	Find the focus of parabola with equation y^2=-100x.(a) (0, 25)(b) (0, -25)(c) (25, 0)(d) (-25, 0)This question was posed to me at a job interview.Enquiry is from Conic Sections topic in section Conic Sections of Mathematics – Class 11
Answer» Correct choice is (d) (-25, 0) For explanation I would SAY: COMPARING equation with y^2=-4ax. 4a=100 => a=25. Focus is at (-a, 0) i.e. (-25, 0).

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Find the focus of parabola with equation y^2=-100x.(a) (0, 25)(b) (0, -25)(c) (25, 0)(d) (-25, 0)This question was posed to me at a job interview.Enquiry is from Conic Sections topic in section Conic Sections of Mathematics – Class 11

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