Great double sided worksheet on functions and the operations. Students will have problems like: f(x)=2x+1, and find f(-3), plus a lot harder ones. Plus, they'll have to identify if it is a function given graphs. The operations worksheet covers addition, subtraction, multiplying and (f o g). Usually takes students 45 minutes to complete. Please, check out my other functions worksheets. There's plenty of working space for students too.