Answer: y= (ײ/20) + 10
Step-by-step explanation:
The general equation for parabola is of the form:
(x -h)² = + 4p (y-k)
Where the vertex is the point (h,k) and p is the distance between the vertex and the directrix, therefore
Focus of parabola is the point (0,10) and the directrix on the x-axis
so the vertex of parabola is the point (0,5) and p = 5
Hence
(× - 0)² = 4*5 (y-10) ⇒ x² = 20y -200 ⇒ x² +200 = 20y ⇒ y= (ײ/20) + 10
