Find the standard form of the equation of the parabola with the given characteristic and vertex at the origin

Directrix: y = -7

Note :

If vertex ≡ O and directrix is y = -b,

then the parabola is : x² = 4by.
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Here d is : y = -7 so that b = 7 and 4b = 28.

Hence, the parabola is : x² = 28y. ..................... Ans.
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