Question

determine as coordenadas do vértice da equação y= x elevado a 2 + 2x+1

Answer 1

X² + 2x + 1 = 0 ax² + bx +C =0
a = 1, b = 2, C = 1
Xv= - b/2a Xv= - 2/1 Xv= - 2

Yv= xv² +2 xv+ 1
Yv = ( - 2)² + 2. ( - 2) +1
Yv = 4 - 4 +1
Yv = 1

V = ( - 2, 1)