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Beliebt Geometry >

leitkurve-x^2-4x-4

Lösung

leitkurve

- x^{2} - 4 x - 4

Lösung

y = \frac{1}{4}

Schritte zur Lösung

Rewrite

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

in the standard form

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

(h, k) = (- 2, 0), p = - \frac{1}{4}

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

- p

from the center

(- 2, 0)

y-coordinate

y = 0 - p

y = 0 - (- \frac{1}{4})

Fasse zusammen

y = \frac{1}{4}

Graph

Beliebte Beispiele

leitkurve y=x^2-8x

d i rec t r i x y = x^{2} - 8 x

leitkurve-x^2-4x+2

d i rec t r i x - x^{2} - 4 x + 2

leitkurve y=x^2-6x

d i rec t r i x y = x^{2} - 6 x

leitkurve y^2+4x=0

d i rec t r i x y^{2} + 4 x = 0

leitkurve y^2=(-16)/5 x

d i rec t r i x y^{2} = \frac{- 16}{5} x