College Algebra, 4th Edition

Section 5.1 Systems of Linear Equations in Two Variables

Before Starting this Section, Review

1. 1 Graphs of equations (Section 2.2 , page 186)

2. 2 Graphs of linear equations (Section 2.3 , page 204)

Objectives

1. 1 Verify a solution to a system of equations.

2. 2 Solve a system of equations by the graphical method.

3. 3 Solve a system of equations by the substitution method.

4. 4 Solve a system of equations by the elimination method.

5. 5 Solve applied problems by solving systems of equations.

Algebra–Iraq Connection

The most important contributions of medieval Islamic mathematicians lie in the area of algebra. One of the greatest Islamic scholars was Muhammad ...