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Popular >

foci x^2=-4y

Solution

foci

x^{2} = - 4 y

Solution

(0, - 1)

Solution steps

Rewrite

x^{2} = - 4 y

in the standard form:

4 (- 1) (y - 0) = (x - 0)^{2}

(h, k) = (0, 0), p = - 1

Parabola is symmetric around the y-axis and so the focus lies a distance

p

from the center

(0, 0)

along the y-axis

(0, 0 + p)

= (0, 0 + (- 1))

Refine

(0, - 1)

Popular Examples

x^2+y^2+10x+12y+25=0

x^{2} + y^{2} + 10 x + 12 y + 25 = 0

vertices x^2=16y vertices

x^{2} = 16 y

directrix y^2=-10x directrix

y^{2} = - 10 x

eccentricity (x^2)/(25)+(y^2)/(25)=1 eccentricity

\frac{x ^{2}}{25} + \frac{y ^{2}}{25} = 1

vertices f(x)=x^2-4 vertices

f (x) = x^{2} - 4

Frequently Asked Questions (FAQ)

What is the foci x^2=-4y ?
The foci x^2=-4y is (0,-1)