Consider functions f and g. Which statements are true about the relationship between the functions?

Function g opens in the same direction as function f.
The vertex of function g is 4 units to the right of the vertex of function f.
The vertex of function g is 2 units below the vertex of function f.
The vertex of function g is 4 units to the left of the vertex of function f.
Function g opens in the opposite direction of function f.
The vertex of function g is 2 units above the vertex of function f.