Answer:
g(x)=(x+3)^3-1
Explanation:
Due to it not being curved and that it goes down to up, its cubed. Looking at the center, we can see that it needs to be (x+3)^3 , as the number inside the parentheses will be going in the opposite direction (pos goes neg). The -1 allows us to translate it down to the required level.
This should be correct.