f rośnie (-∞;2>
f maleje <2;∞)
ŻW(-∞;1>
[tex]f(x) = a(x - p {)}^{2} + q \\ f(x) = - 3(x + 2 {)}^{2} + 1 \\ p = - 2 \\ q = 1 \\ w ( - 2;1)[/tex]
[tex]f(x) = - 3 {x}^{2} - 12x - 11 \\ a = - 3 \: \: \: \: \: \: \: b = - 12 \\ p = - \frac{ - 12}{2 \times ( - 3)} = - \frac{ - 12}{ - 6} = - 2[/tex]
