Question

sa se determine valoarea maxima a functiei
f(x)= x^2 + 5x + 4

Answer 1

a = 1 > 0, functia are valoare minima

$x_v = \frac{-b}{2a} = \frac{-5}{2}$
$y_v = \frac{-delta}{4a} = \frac{-9}{4}$
Min ($\frac{-5}{2} ; \frac{-9}{4}$)