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Beliebt Geometry >

leitkurve y=x^2+6x+9

Lösung

leitkurve

y = x^{2} + 6 x + 9

Lösung

y = - \frac{1}{4}

Schritte zur Lösung

Rewrite

y = x^{2} + 6 x + 9

in the standard form

4 \cdot \frac{1}{4} (y - 0) = (x - (- 3))^{2}

(h, k) = (- 3, 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

(- 3, 0)

y-coordinate

y = 0 - p

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

Fasse zusammen

y = - \frac{1}{4}

Graph

Beliebte Beispiele

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

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

leitkurve-x^2-4x-4

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

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