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Beliebt Geometry >

leitkurve x^2+4x-5

Lösung

leitkurve

x^{2} + 4 x - 5

Lösung

y = - \frac{37}{4}

Schritte zur Lösung

Rewrite

y = x^{2} + 4 x - 5

in the standard form

4 \cdot \frac{1}{4} (y - (- 9)) = (x - (- 2))^{2}

(h, k) = (- 2, - 9), 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

(- 2, - 9)

y-coordinate

y = - 9 - p

y = - 9 - \frac{1}{4}

Fasse zusammen

y = - \frac{37}{4}

Graph

Beliebte Beispiele

leitkurve x=(-1)/4 (y+2)^2

d i rec t r i x x = \frac{- 1}{4} (y + 2)^{2}

leitkurve y^2=4ax

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

leitkurve y^2-2y-4x+9=0

d i rec t r i x y^{2} - 2 y - 4 x + 9 = 0

leitkurve 1/3 x^2-8/3 x+1/3

d i rec t r i x \frac{1}{3} x^{2} - \frac{8}{3} x + \frac{1}{3}

leitkurve 3x^2-12x+5

d i rec t r i x 3 x^{2} - 12 x + 5