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Beliebt Geometry >

leitkurve x^2-2x-9

Lösung

leitkurve

x^{2} - 2 x - 9

Lösung

y = - \frac{41}{4}

Schritte zur Lösung

Rewrite

y = x^{2} - 2 x - 9

in the standard form

4 \cdot \frac{1}{4} (y - (- 10)) = (x - 1)^{2}

(h, k) = (1, - 10), 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

(1, - 10)

y-coordinate

y = - 10 - p

y = - 10 - \frac{1}{4}

Fasse zusammen

y = - \frac{41}{4}

Graph

Beliebte Beispiele

leitkurve y=x^2-8

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

leitkurve-0.4x^2-5

d i rec t r i x - 0.4 x^{2} - 5

leitkurve x+5+(y-3)^2=0

d i rec t r i x x + 5 + (y - 3)^{2} = 0

leitkurve (x+2)^2=8(y-3)

d i rec t r i x (x + 2)^{2} = 8 (y - 3)

leitkurve y=16x^2+1

d i rec t r i x y = 16 x^{2} + 1