Respuesta :

Answer:

vertex : (2, -7)

Step-by-step explanation:

find the vertex. y=3x^2-12x+5

line of symmetry:  x = -b/2a

x = -(-12)/(2*3) =  2

y = 3*2^2  - 12*2  + 5  = 12 - 24 + 5 = -12 + 5 = -7

vertex:  (2, -7)