轴 y=6(x-1/2)(x+3)

解答

轴

y = 6 (x - \frac{1}{2}) (x + 3)

x = - \frac{5}{4}

求解步骤

y = 6 (x - \frac{1}{2}) (x + 3)

将

y = 6 (x - \frac{1}{2}) (x + 3)

改写为标准形式

4 \cdot \frac{1}{24} (y - (- \frac{147}{8})) = (x - (- \frac{5}{4}))^{2}

因此抛物线性质是:

(h, k) = (- \frac{5}{4}, - \frac{147}{8}), p = \frac{1}{24}

EN : P a r ab o l e S y mm e t ry A x i s T i tl e 2 Eq

x = - \frac{5}{4}

a x i s y = 9 x^{2} + 25

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

a x i s 8 (x - 2) = (y + 3)^{2}

a x i s y = - x^{2} - 8

a x i s y = - \frac{1}{4} (x + 9)^{2} - 7