Pls help this is a test

What is the vertex form of f(x) = x2 + 6x + 3

Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]

Abank gives 6.5% interest per year. what is the growth factor b in this situation?