10-6 Operations with Functions – We learned to combine functions using arithmetic operations, including addition, subtraction, and multiplication. Then we combined functions to solve real-world problems. We discovered that functions can be combined in the same way as numbers, expressions, and polynomials. Addition, subtraction, and multiplication can be used to find (f + g) (x), (f – g) (x), and (f x g) (x). Then Cameron completed the end-of-year Algebra 1 Test and did very well.