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Popular >

foci (x-3)(x+1)

Solution

foci

(x - 3) (x + 1)

Solution

(1, - \frac{15}{4})

Solution steps

Rewrite

y = (x - 3) (x + 1)

in the standard form

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

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

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

p

from the center

(1, - 4)

along the y-axis

(1, - 4 + p)

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

Refine

(1, - \frac{15}{4})

Popular Examples

foci y=x^2+5x-24 foci

y = x^{2} + 5 x - 24

foci y=-x^2+2x-5 foci

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

foci y=2x^2-1+5x foci

y = 2 x^{2} - 1 + 5 x

foci y=9x^2+48x+64 foci

y = 9 x^{2} + 48 x + 64

foci x^2-12x+35 foci

x^{2} - 12 x + 35

Frequently Asked Questions (FAQ)

What is the foci (x-3)(x+1) ?
The foci (x-3)(x+1) is (1,-15/4)