The focal distance of the point $(4,4)$ on the parabola with vertex at $((0,0)$ and symmetric about y-axis is

The focal distance of the point $(4,4)$ on the parabola with vertex at $((0,0)$ and symmetric about y-axis is
  1. 4
  2. 5
  3. $5 \sqrt{2}$
  4. $4 \sqrt{2}$

Solution

$x^{2}=4 y$ Focal distance = 5

Asked in: MHT CET 2020 (13 Oct Shift 2)

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