This is the 9th chapter of a textbook that fully integrates computer programming (TI-84 BASIC) with precalculus objectives. Both disciplines are fully explained and accompanied by a robust selection of exercises. This course can be taught with a lab component in which students work in groups; or students can learn independently by reading and following the examples. While Chapters 1 - 8 are helpful; they are not a prerequisite. Students will quickly pick up on programming basics from the context