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Beliebt Geometry >

leitkurve (x+4)^2-1

Lösung

leitkurve

(x + 4)^{2} - 1

Lösung

y = - \frac{5}{4}

Schritte zur Lösung

Rewrite

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

in the standard form:

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

(h, k) = (- 4, - 1), 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

(- 4, - 1)

y-coordinate

y = - 1 - p

y = - 1 - \frac{1}{4}

Fasse zusammen

y = - \frac{5}{4}

Graph

Beliebte Beispiele

leitkurve y^2+4x-8y+12=0

d i rec t r i x y^{2} + 4 x - 8 y + 12 = 0

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

d i rec t r i x y = 4 x^{2} + 8 x - 20

leitkurve 2x^2-4x+15

d i rec t r i x 2 x^{2} - 4 x + 15

leitkurve y=-1/8 x^2

d i rec t r i x y = - \frac{1}{8} x^{2}

leitkurve x^2=-20y

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