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Beliebt Geometry >

leitkurve y=-x^2-1

Lösung

leitkurve

y = - x^{2} - 1

Lösung

y = - \frac{3}{4}

Schritte zur Lösung

Rewrite

y = - x^{2} - 1

in the standard form:

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

(h, k) = (0, - 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

(0, - 1)

y-coordinate

y = - 1 - p

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

Fasse zusammen

y = - \frac{3}{4}

Graph

Beliebte Beispiele

leitkurve+6x^2+6x-12

d i rec t r i x + 6 x^{2} + 6 x - 12

leitkurve y^2=20(x-10)

d i rec t r i x y^{2} = 20 (x - 10)

leitkurve y=3x^2-18x+23

d i rec t r i x y = 3 x^{2} - 18 x + 23

leitkurve y^2-5x+12y=-16

d i rec t r i x y^{2} - 5 x + 12 y = - 16

leitkurve 3y^2=10x

d i rec t r i x 3 y^{2} = 10 x