We're going to learn to use a variety of methods to solve a system of equations.

**TEKS Standards and Student Expectations**

**A(3) **Linear functions, equations, and inequalities. The student applies the mathematical process standards when using graphs of linear functions, key features, and related transformations to represent in multiple ways and solve, with and without technology, equations, inequalities, and systems of equations. The student is expected to:

**A(3)(F) **graph systems of two linear equations in two variables on the coordinate plane and determine the solutions if they exist

**A(3)(G) **estimate graphically the solutions to systems of two linear equations with two variables in real-world problems

**A(5) **Linear functions, equations, and inequalities. The student applies the mathematical process standards to solve, with and without technology, linear equations and evaluate the reasonableness of their solutions. The student is expected to:

**A(5)(C) **solve systems of two linear equations with two variables for mathematical and real-world problems

**Resource Objective(s)**

Given verbal and/or algebraic descriptions of situations involving systems of two variable linear equations, the student will solve the system of equations.

**Essential Questions**

How can a system of equations be solved by graphing?

How can a system of equations be solved by substitution?

How can a system of equations be solved by elimination?

**Vocabulary**