We can apply arithmetic operations on functions. That means that two functions can be added, subtracted, multiplied, or divided. The domain of the function that comes as a result of these operations will be the intersection of the domains of the two functions. This lecture also covers the composition of functions. The interesting thing to know about a composition of functions is that you start working from right to left, which you'll see in the video. An important rule to remember is that composition is not commutative, which means that the composition of f and g is not the same as the composition of g and f.
*These practice questions are only helpful when you work on them offline on a piece of paper and then use the solution steps function to check your answer.
Operations on Functions
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.