<jupyter_start><jupyter_text>Construir o gráfico e encontrar o foco e uma equação da diretriz. 7. $x^2 - 10y = 0$Arrumando a equação$x^2 = 10y$$2p = 10$, logo$p = 5$Calculando o foco$F = \frac{p}{2}$$F = \frac{5}{2}$$F(0, \frac{5}{2})$Calculando a diretriz$D = -\frac{p}{2}$$D = -\frac{5}{2}$$V(0,0)$$D : y = -\frac{5}{2}$$F(0, \frac{5}{2})$ Gráfico da parábola<jupyter_code>from sympy import *
from sympy.plotting import plot_implicit
x, y = symbols("x y")
plot_implicit(Eq((x-0)**2, 10*(y+0)), (x,-10,10), (y,-10,10),
title=u'Gráfico da parábola', xlabel='x', ylabel='y');<jupyter_output><empty_output>
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