Y = 2 + 2x²-5x hanapin vertex ng parabola?

Sagot:

Nasa Vertex #(1.25,-1.125)#

Paliwanag:

# y = 2 + 2 x ^ 2 -5 x o y = 2 x ^ 2 -5 x + 2 # o

# y = 2 (x ^ 2 - 2.5 x) + 2 # o

# y = 2 {x ^ 2 - 2.5 x + (2.5 / 2) ^ 2} - 2 (2.5 / 2) ^ 2 + 2 # o

# y = 2 {x ^ 2 - 2.5 x + 1.25 ^ 2} - 3.125 + 2 # o

# y = 2 (x - 1.25) ^ 2 - 1.125 # Paghahambing sa vertex form ng

equation #f (x) = a (x-h) ^ 2 + k; (h, k) # pagiging tuktok na nakita namin

dito # h = 1.25, k = -1.125:. # Nasa Vertex #(1.25,-1.125)#

graph {2x ^ 2-5x + 2 -10, 10, -5, 5} Ans