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Beliebt Geometry >

foki x^2-5x-7

Lösung

foki

x^{2} - 5 x - 7

Lösung

(\frac{5}{2}, - 13)

Schritte zur Lösung

Rewrite

y = x^{2} - 5 x - 7

in the standard form

4 \cdot \frac{1}{4} (y - (- \frac{53}{4})) = (x - \frac{5}{2})^{2}

(h, k) = (\frac{5}{2}, - \frac{53}{4}), p = \frac{1}{4}

Parabola is symmetric around the y-axis and so the focus lies a distance

p

from the center

(\frac{5}{2}, - \frac{53}{4})

along the y-axis

(\frac{5}{2}, - \frac{53}{4} + p)

= (\frac{5}{2}, - \frac{53}{4} + \frac{1}{4})

Fasse zusammen

(\frac{5}{2}, - 13)

Graph

Beliebte Beispiele

f oc i y = 7 x^{2}

foki y=x^2+2x+4

f oc i y = x^{2} + 2 x + 4

foki y^2+2y+1=-2x+4

f oc i y^{2} + 2 y + 1 = - 2 x + 4

foki (y-3)^2=-8(x+2)

f oc i (y - 3)^{2} = - 8 (x + 2)

foki y=-x^2+14x+49

f oc i y = - x^{2} + 14 x + 49