1)Określ współrzędne wierzchołka paraboli:
y=3(x+3)
z.1
y = 3*(x + 3)^2 - 5
p = -3 oraz q = -5
W = (-3; -5)
=================
y = -9 x^2 - 2 = - 9*(x - 0)^2 -2
p = 0 oraz q = -2
W = (0 ; -2)
===========================
z.2
a) y = 3 + 2x - 4x^2
y = - 4 x^2 + 2x + 3
a = - 4 < 0 , zatem ramiona paraboli skierowane są do dołu
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z.1
y = 3*(x + 3)^2 - 5
p = -3 oraz q = -5
W = (-3; -5)
=================
y = -9 x^2 - 2 = - 9*(x - 0)^2 -2
p = 0 oraz q = -2
W = (0 ; -2)
===========================
z.2
a) y = 3 + 2x - 4x^2
y = - 4 x^2 + 2x + 3
a = - 4 < 0 , zatem ramiona paraboli skierowane są do dołu