Współrzędne wierzchołka paraboli y+4(3/2x-1)do kwadratu-2 to: a)6,-2) b)(-6,2) c)(2/3,-2) d)(3/2,2)
y=4(3/2x-1)² - 2 = 4(9/4x² -3x + 1) - 2 =
= 9x² - 12x + 4 - 2 = 9x² - 12x +2
p=-b/2a = 12/18 = 2/3
q=f(p) = 9*4/9 - 12* 2/3 + 2 = 4 - 8 + 2 = -2
więc:
w(2/3 , -2 ) odp C
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y=4(3/2x-1)² - 2 = 4(9/4x² -3x + 1) - 2 =
= 9x² - 12x + 4 - 2 = 9x² - 12x +2
p=-b/2a = 12/18 = 2/3
q=f(p) = 9*4/9 - 12* 2/3 + 2 = 4 - 8 + 2 = -2
więc:
w(2/3 , -2 ) odp C