What is the differential equation of a family of parabolas with the fo – McqOptions

MCQOPTIONS

1.	What is the differential equation of a family of parabolas with the foci at the origin and axis along the X-axis?
A.	2xy + 4y(y )<sup>2</sup>-y=0
B.	xy + y(y )<sup>2</sup>-y=0
C.	2xy + y(y )<sup>2</sup>-y=0
D.	2xy +2y(y )<sup>2</sup>-y=0
Answer» D. 2xy +2y(y )<sup>2</sup>-y=0

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