Question

Determine o ponto V(xv, yv), vértice da parábola -x² + x - 3​

Answer 1

∆= b² -4ac = 1² -4.(-1).(-3) = 1 -12 = -11

xv = -b/2a = -1/-2 = 1/2 ✓

yv = -∆/4a = 11/-4 = -11/4 ✓

===> V( 1/2 , -11/4)