Question

Qual a vertice de f(x) = 2x² - 3x - 2 ????

Answer 1

Xv= -b/2a
Xv= -(-3)/2.2
Xv= 3/4

Yv= -∆/4a
∆= (-3)²-(4.1.-2)
∆= 9-(-8)
∆=9+8
∆= 17

Yv= -17/4.2
Yv= -17/8

V(3/4,-17/8)