Question

o valor maximo da funçao y= x2 +3x-k-1

Answer 1

o valor minimo da funcao eh o vertice, no caso:

$\frac{-\Delta}{4a}$

$\Delta=9-4(1)(-k-1)=9+4k+4=13+4k\\ \\ \frac{-\Delta}{4a}=\frac{-13-4k}{4}=\frac{-13}{4}-k$