Odpowiedź :
y = -2x² + 4x
W = (p, q)
p = -b/2a
q = -∆/4a
a = -2, b = 4, c = 0
∆ = 4² - 4 * (-2) * 0 = 16
p = -4/-4 = 1
q = -16/-8 = 2
W = (1, 2)
y = -2x² + 4x
W = (p, q)
p = -b/2a
q = -∆/4a
a = -2, b = 4, c = 0
∆ = 4² - 4 * (-2) * 0 = 16
p = -4/-4 = 1
q = -16/-8 = 2
W = (1, 2)