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Beliebt Geometry >

leitkurve y^2+8x-4y+20=0

Lösung

leitkurve

y^{2} + 8 x - 4 y + 20 = 0

Lösung

x = 0

Schritte zur Lösung

Rewrite

y^{2} + 8 x - 4 y + 20 = 0

in the standard form

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

(h, k) = (- 2, 2), p = - 2

Parabola is symmetric around the x-axis and so the directrix is a line parallel to the y-axis, a distance

- p

from the center

(- 2, 2)

x-coordinate

x = - 2 - p

x = - 2 - (- 2)

Fasse zusammen

x = 0

Graph

Beliebte Beispiele

leitkurve x=(y-3)^2-4

d i rec t r i x x = (y - 3)^{2} - 4

leitkurve-30x^2+28x-6

d i rec t r i x - 30 x^{2} + 28 x - 6

leitkurve y^2-20x=0

d i rec t r i x y^{2} - 20 x = 0

leitkurve x^2=100y

d i rec t r i x x^{2} = 100 y

leitkurve x=-1/4 (y+6)^2+7

d i rec t r i x x = - \frac{1}{4} (y + 6)^{2} + 7