Mi az y = 12x ^ 2 - 18x - 6 csúcs?

Mi az y = 12x ^ 2 - 18x - 6 csúcs?
Anonim

Válasz:

# P = (3/4, -51/4) #

Magyarázat:

# P = (h, k) "Vertex koordináták" #

# Y = ax ^ 2 + bx + c #

# a = 12 ";" b = -18 ";" c = -6 #

# Y = 12x ^ 2-18x-6 #

# H = -B / (2a) #

# H = 18 / (2 * 12) = 18/24 = 3/4-#

# K = 12 * (3/4) ^ 2-18 * 3 / 4-6 #

# K = 12 * 9 / 16-54 / 4-6 #

# K = 27 / 4-54 / 4-24 / 4 = (27-78) / 4 = -51/4 #

# P = (3/4, -51/4) #