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Beliebt Geometry >

foki 2x^2+5x-7

Lösung

foki

2 x^{2} + 5 x - 7

Lösung

(- \frac{5}{4}, - 10)

Schritte zur Lösung

Rewrite

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

in the standard form

4 \cdot \frac{1}{8} (y - (- \frac{81}{8})) = (x - (- \frac{5}{4}))^{2}

(h, k) = (- \frac{5}{4}, - \frac{81}{8}), p = \frac{1}{8}

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

p

from the center

(- \frac{5}{4}, - \frac{81}{8})

along the y-axis

(- \frac{5}{4}, - \frac{81}{8} + p)

= (- \frac{5}{4}, - \frac{81}{8} + \frac{1}{8})

Fasse zusammen

(- \frac{5}{4}, - 10)

Graph

Beliebte Beispiele

f oc i y = x^{2} - 16

f oc i 2 x^{2} - 3

f oc i y^{2} = - 20 x

foki y=(4x^3-7x^2-11x+5)/(4x+5)

f oc i y = \frac{4 x ^{3} - 7 x ^{2} - 11 x + 5}{4 x + 5}

foki y=3x^2+19x-40

f oc i y = 3 x^{2} + 19 x - 40