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Popular >

foci x^2-4x-7

Solution

foci

x^{2} - 4 x - 7

Solution

(2, - \frac{43}{4})

Solution steps

Rewrite

y = x^{2} - 4 x - 7

in the standard form

4 \cdot \frac{1}{4} (y - (- 11)) = (x - 2)^{2}

(h, k) = (2, - 11), p = \frac{1}{4}

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

p

from the center

(2, - 11)

along the y-axis

(2, - 11 + p)

= (2, - 11 + \frac{1}{4})

Refine

(2, - \frac{43}{4})

Popular Examples

foci y=2x^2+28x+105 foci

y = 2 x^{2} + 28 x + 105

foci (y-2)^2=2x+1 foci

(y - 2)^{2} = 2 x + 1

foci x^2-4x+3 foci

x^{2} - 4 x + 3

foci (x-4)^2=-12(y-3)foci

(x - 4)^{2} = - 12 (y - 3)

foci x^2-2x-24 foci

x^{2} - 2 x - 24

Frequently Asked Questions (FAQ)

What is the foci x^2-4x-7 ?
The foci x^2-4x-7 is (2,-43/4)