Choose the correct vertex of the quadratic function f(x) = 3x2 - 2x - 1.

vertex is

Step-by-step explanation:

f(x) = 3x^2 - 2x - 1

Given equation is in the form of f(x) = ax^2 + bx+c

a=3 , b=-2 , c=-1

To find x coordinate of vertex we use formula x= -b/2a

To find y coordinate of vertex plug in -1/3 in the place of x in f(X)

f(x) = 3x^2 - 2x - 1

So vertex is

the correct answer is 5 6 and 7