Using number 5 and the axis of symmetry, find the vertex. y=3x^2-12x+5

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)