dana funkcję kwadratową w postaci kanonicznej zapisz w postaci ogólnej i podaj wartości a,b,c:
y=-9(x+1/3)kwadrat
y=(x-2)kwadrat -4
y=4(x-2)kwadrat+1
y=2(x+1)kwadrat-5
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y=-9(x+1/3)kwadrat = -9(x + 1/3)^2 = -9(x^2 + 2/3x + 1/9) = -9x^2 - 6x - 1
y=(x-2)kwadrat -4 = (x^2 - 4x + 4 ) - 4 = x^2 - 4x
y=4(x-2)kwadrat+1 = 4(x^2 - 4x + 4) + 1 = 4x^2 - 16x -16 + 1 = 4x^2 - 16x - 15
y=2(x+1)kwadrat-5 = 2(x^2 + 2x + 1) - 5 = 2x^2 +4x + 2 - 5 = 2x^2 + 4x - 3