11.1: Objectives
After completing this chapter, you should
Solutions by Graphing
- be able to recognize a system of equations and a solution to it
- be able to graphically interpret independent, inconsistent, and dependent systems
- be able to solve a system of linear equations graphically
Elimination by Substitution
- know when the substitution method works best
- be able to use the substitution method to solve a system of linear equations
- know what to expect when using substitution with a system that consists of parallel lines or coincident lines
Elimination by Addition
- know the properties used in the addition method
- be able to use the addition method to solve a system of linear equations
- know what to expect when using the addition method with a system that consists of parallel or coincident lines
Applications
- become more familiar with the five-step method for solving applied problems
- be able to solve number problems
- be able to solve value and rate problems