x^2=8y

解答

x^{2} = 8 y

(h, k) = (0, 0), p = 2

求解步骤

x^{2} = 8 y

将

x^{2} = 8 y

改写为标准形式:

4 \cdot 2 (y - 0) = (x - 0)^{2}

因此抛物线性质是:

(h, k) = (0, 0), p = 2

f oc i (x + 6)^{2} + \frac{( y + 4 ) ^{2}}{\frac{1}{4}} = 1

\frac{x ^{2}}{25} + \frac{y ^{2}}{16} = 1

v er t i ces \frac{y ^{2}}{36} - \frac{x ^{2}}{64} = 1

x^{2} + (y + 2)^{2} = 4

x = 4 y^{2} + 8 y - 3