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Beliebt Geometry >

leitkurve y=-9x^2+2

Lösung

leitkurve

y = - 9 x^{2} + 2

Lösung

y = \frac{73}{36}

Schritte zur Lösung

Rewrite

y = - 9 x^{2} + 2

in the standard form:

4 (- \frac{1}{36}) (y - 2) = (x - 0)^{2}

(h, k) = (0, 2), p = - \frac{1}{36}

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, 2)

y-coordinate

y = 2 - p

y = 2 - (- \frac{1}{36})

Fasse zusammen

y = \frac{73}{36}

Graph

Beliebte Beispiele

leitkurve x^2-12x+1

d i rec t r i x x^{2} - 12 x + 1

leitkurve y=(2x+3)^2

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

leitkurve 3x^2+7x+1

d i rec t r i x 3 x^{2} + 7 x + 1

leitkurve 0.3+5.5t-4.9t^2

d i rec t r i x 0.3 + 5.5 t - 4.9 t^{2}

leitkurve y+8x^2=0

d i rec t r i x y + 8 x^{2} = 0