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Beliebt Geometry >

leitkurve y=-3x^2-12x-9

Lösung

leitkurve

y = - 3 x^{2} - 12 x - 9

Lösung

y = \frac{37}{12}

Schritte zur Lösung

Rewrite

y = - 3 x^{2} - 12 x - 9

in the standard form

4 (- \frac{1}{12}) (y - 3) = (x - (- 2))^{2}

(h, k) = (- 2, 3), p = - \frac{1}{12}

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, 3)

y-coordinate

y = 3 - p

y = 3 - (- \frac{1}{12})

Fasse zusammen

y = \frac{37}{12}

Graph

Beliebte Beispiele

leitkurve y= 1/8 x^2

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

leitkurve-2x^2+5x-6

d i rec t r i x - 2 x^{2} + 5 x - 6

leitkurve 4x^2-20x-24y+97=0

d i rec t r i x 4 x^{2} - 20 x - 24 y + 97 = 0

leitkurve (6x)/7 (4x)/3

d i rec t r i x \frac{6 x}{7} \frac{4 x}{3}

leitkurve x^2-x-6

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