Sagot:
Vertex #(-2, 1)#
Paliwanag:
Given -
# y = x ^ 2 + 4x + 5 #
Hanapin ang # x #co-ordinate ng vertex.
#x - (- b) / (2a) = (- 4) / (2 xx 1) = (- 4) / 2 = -2 #
Hanapin ang # y #co-ordinate
Sa # x = -2; y = (- 2) ^ 2 + 4 (-2) + 5 #
# y = 4-8 + 5 = 9-8 = 1 #
Vertex #(-2, 1)#
