Find the equation of parabola
(i) having focus at (0,-3) its directrix is y = 3.
(ii) having end points of latus rectum (5,10) and (5,10) and which opens towards right.
(iii) having vertex at origin and focus at (0,2)

Explanation

To find the equations of the parabolas in the given parts, we will follow the standard forms and properties of parabolas.

### Part (i): Focus at (0, -3) and Directrix y = 3

1. **Identify the focus and directrix**:
- Focus: \( F(0, -3) \)
- Directrix: \( y = 3 \)

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