How many functions, onto, and one-to-ones?

Please help. I have been working on the following problem:

How many functions are there from http://brevardcc.angellearning.com/A...008_003780.gif, a set with two elements, to http://brevardcc.angellearning.com/A...024_884456.gif, a set with three elements?

How many of these functions are one-to-one?

How many are onto?

I get 9 functions, 6 one-to-one and 0 onto. Is this right?

(Rock)

Re: How many functions, onto, and one-to-ones?

Quote:

Originally Posted by

**brianjasperman**

Each of those answers is correct.