The differential equation of the family of parabolas having vertices at the origin and foci on y-axis is

What is the differential equation to family of parabola having their vertices at the origin and foci on the X-axis ?

From the differential equation of the family of parabolas having vertex at the origin and axis along positive direction of x -axis.

Find the differential equation of all parabolas having their vertices at the origin and foci on x-axis.

From the differential equation of family of parabolas having vertex at the origin and axis along positive y-axis .

From the differential equation of the family of all parabolas having vertex at the origin and axis along the positive direction of the x-axis is given by

Form the differential equation of the family of parabolas having vertex at origin and axis along positive y-axis.

Form the differential equation of the family of parabolas having vertex at origin and axis along positive y-axis.