Menjawab:
# "Vertex {-3.5", "-4.25} #
Penjelasan:
# y = (x + 2) ^ 2 + 3x + 4 #
# y = x ^ 2 + 4x + 4 + 3x + 4 #
# y = x ^ 2 + 7x + 8 "(1)" #
# (d y) / (d x) = 0 #
# (d y) / (d x) = 2x + 7 = 0 #
# 2x + 7 = 0 #
# 2x = -7 #
# x = -7 / 2 = -3.5 #
# "gunakan (1)" #
#y = (- 7/2) ^ 2-7 (7/2) + 8 #
# y = 49 / 4-49 / 2 + 8 #
# y = (49-98 + 32) / 4 #
# y = -17 / 4 = -4.25 #
# "Vertex {-3.5", "-4.25} #
