Great set of 9+ worksheets that cover everything about Functions. All worksheets are double sided and a few come with answer keys. There is a test/quiz included with a answer key. The first is a f(x) where students determine if it is a function, then find f(3), and f(g(3)) types of problems, there is also a review sheet. The second covers operations, adding, subtracting, multiplying and the composition, and there's a review worksheet too. The third is everything students need to do for the