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Beliebt Geometry >

leitkurve y=(x^2-4x-1)/7

Lösung

leitkurve

y = \frac{x ^{2} - 4 x - 1}{7}

Lösung

y = - \frac{69}{28}

Schritte zur Lösung

Rewrite

y = \frac{x ^{2} - 4 x - 1}{7}

in the standard form

4 \cdot \frac{7}{4} (y - (- \frac{5}{7})) = (x - 2)^{2}

(h, k) = (2, - \frac{5}{7}), p = \frac{7}{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, - \frac{5}{7})

y-coordinate

y = - \frac{5}{7} - p

y = - \frac{5}{7} - \frac{7}{4}

Fasse zusammen

y = - \frac{69}{28}

Graph

Beliebte Beispiele

leitkurve y^2-28x=0

d i rec t r i x y^{2} - 28 x = 0

leitkurve 3y^2=-4x

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

leitkurve y=-x^2+6x

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

leitkurve y=x^2-4x+5

d i rec t r i x y = x^{2} - 4 x + 5

leitkurve y=x^2-6x-12

d i rec t r i x y = x^{2} - 6 x - 12