Description

We begin this subject by refreshing our skills from Algebra inlcuding operations with Real numbers; solving equations and inequalities; as well as graphing lines and functions in the Rectangular Coordinate system.

Sections of this topic include:

1. Real Numbers, Equations, and Inequalities

   We start with a refresher of the real number system and a review of important Algebraic topics. Groups in this section include determining signs of real numbers; finding absolute values; finding absolute values of variable expressions; solving linear equations; solving equations by factoring; solving equations by using the square root method; solving equations by using the Quadratic Formula; solving equations that are quadratic in form; expressing inequalities as intervals and sketching number line solutions; expressing intervals as inequalities.

2. Rectangular Coordinate Systems and Graphs

   We continue our review of Algebra by investigatinv the Rectangular Coordinate System. Groups in this section include describing points in a coordinate plane that satisfy conditions; the distance and midpoint formulas; sketching graphs of circles; finding equations of circles; finding centers and radii of a circle from its equation.