Discussion topic you've learned about function notation in previous lessons, but could you use function notation to add two functions? how do you think you could simplify f(x) + g(x) if f(x) = 3x + 2 and g(x) = 4x? what about a function of a function such as flg( how do you think f(g(x)) could be simplified? what situations can you think of where combining functions would be useful