This unit will focus on the use of variables in algebra (such as x and y). You will use “algebra tiles” to explore how and where to use variables. A special focus will be placed on the meaning of “minus” and how to make “zero.” This topic lays the foundation for simplifying expressions and solving equations; it will be revisited and built upon repeatedly throughout this course.
In previous courses, you may have learned about relationships between two quantities that could be graphed with a straight line. In this chapter, you will explore nonlinear functions and learn how to describe a function completely. You will see the shapes and behaviors of several different nonlinear functions. This chapter also introduces you to sharing your mathematical knowledge with a study team as you work together to solve problems.
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