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An in-depth review of chapter 4 from math 102, focusing on systems of linear equations in two variables. Topics covered include graphical solutions, elimination method, and substitution method for solving linear systems, as well as applications of these concepts to word problems involving coins, mixtures, and interest. Students should understand the meaning of a linear system of equations, how to graph lines, and how to use elimination and substitution methods to find the unique solution or determine if there is no solution or an infinite number of solutions.
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Test 3 Review (Ch. 4) Math 102
Ch. 4: Systems of linear equations in two variables.
4.1: Introduction to linear systems/graphical solutions.
Note: you should be able to quickly graph both lines in the system by solving for y and using slope-intercept form.
4.2: Elimination method for solving linear systems.
4.3: Substitution method for solving linear systems.
4.4: Applications of linear systems.