Sagot:
Vertex: #(-2/3,5)#
Paliwanag:
Pangkalahatang tuktok na form:
#color (white) ("XXX") y = m (x-a) ^ 2 + b #
na may kaitaasan sa # (a, b) #
Pag-convert # y = 2 (3x + 2) ^ 2 + 5 # sa "vertex form"
#color (puti) ("XXX") y = 2 (3 (x + 2/3)) ^ 2 + 5 #
#color (white) ("XXX") y = 2 (9) (x + 2/3) ^ 2 + 5 #
#color (puti) ("XXX") y = 18 (x - (- 2/3)) ^ 2 + 5 #