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Beliebt Geometry >

leitkurve-x^2+6x-9

Lösung

leitkurve

- 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 (- \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 (x+3)^2=24(y-1)

d i rec t r i x (x + 3)^{2} = 24 (y - 1)

leitkurve x^2+2x+1

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

leitkurve x^2-20x+100

d i rec t r i x x^{2} - 20 x + 100

leitkurve y=2x^2+4

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

leitkurve y=3x^2-x-4

d i rec t r i x y = 3 x^{2} - x - 4