Chapter 04 Competencies - Advanced Algebra

Number Section Skill
Examples
1 4-1 Graph a system of equations and tell how many solutions it has
4-1: 1-4
2 4-1 Solve systems of equations by graphing
4-1: 7-14
3 4-1 Graph systems of inequalities
4-1: 15-18
4 4-1 Write a system of inequalities based on a shaded graph
4-1: 32-35
5 4-2 Solve systems of equations by substitution or elimination
4-2: 1-8,10-17
6 4-4 Be able to graph points in 3 dimensions on both front- and side-view graphs
4-4: 11-18
7 4-4 Graph planes on 3-dimensional graphs using x-, y-, and z-intercepts
4-4: 22-27
8 4-5 Solve systems of three equations using elimination
4-5: 1-6
9 4-5 Solve systems of three equations using substitution where possible
4-5: 8,9,10
10 4-6 Use matrix equations to solve 2- and 3-dimensional systems
4-6: 13-18
11 Other Use systems of equations to answer questions that involve multiple variables, including, but not limited to, pricing, mixtures, relative speeds, investments and puzzles.
4-5:#7, 4-6:#28, Worksheet