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scoray [572]
3 years ago
5

What are the focus and directrix of the parabola with the equation y=1/16x^2

Mathematics
1 answer:
Vlada [557]3 years ago
8 0
Y=1/16x^2
multiplying both sides by 16 we get:
16y=x^2
The general form of a parabola is:
(x-h)^2=4p(y-k)
thus
4p=16
p=4
The parabola opens upwrd:
Focus: (h,k-p)
(0,0-4)
=(0,-4)
Directrix: y=-4
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