A playground is being designed where children can interact with their friends in certain combinations.

If there is 1 child, there can be 0 interactions.
If there are 2 children, there can be 3 interactions.
If there are 3 children, there can be 9 interactions.
If there are 4 children, there can be 18 interactions.

Which recursive equation represents the pattern?

Question

A playground is being designed where children can interact with their friends in certain combinations.

If there is 1 child, there can be 0 interactions. 
If there are 2 children, there can be 3 interactions. 
If there are 3 children, there can be 9 interactions. 
If there are 4 children, there can be 18 interactions.

Which recursive equation represents the pattern?

natsent06 · Answer

I cant answer that question because I need more info

anonymous · Answer

is that enough?

natsent06 · Answer

hold on let me write this out

natsent06 · Answer

um im having problems figuring this out

natsent06 · Answer

well i can see that your numbers are wrong