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Popular >

foci-x^2+4x-9

Solution

foci

- x^{2} + 4 x - 9

Solution

(2, - \frac{21}{4})

Solution steps

Rewrite

y = - x^{2} + 4 x - 9

in the standard form

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

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

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

p

from the center

(2, - 5)

along the y-axis

(2, - 5 + p)

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

Refine

(2, - \frac{21}{4})

Popular Examples

foci-x^2+4x-3 foci

- x^{2} + 4 x - 3

foci x^2-4x+8y+12=0 foci

x^{2} - 4 x + 8 y + 12 = 0

foci (6x-5)^2 foci

(6 x - 5)^{2}

foci y=-1/4 x^2 foci

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

foci y=9x^2+24x+16 foci

y = 9 x^{2} + 24 x + 16

Frequently Asked Questions (FAQ)

What is the foci-x^2+4x-9 ?
The foci-x^2+4x-9 is (2,-21/4)