Question

F(x)=x²+10x-9 hallar el vértice

Answer 1

Respuesta:

$x = - \frac{b}{2a} = - \frac{10}{2(1)} = - \frac{10}{2} = - 5$

$y = - \frac{ {b}^{2} - 4ac}{4a} = - \frac{ {(10)}^{2} - 4(1)( - 9)}{4(1 )} = - \frac{100 + 36}{4} = - \frac{136}{4} = - 34$