Unit 4 Systems
The study guide for unit 4 begins on page 177 and ends on page 179. You should complete problems 1 - 5 all, and at least 6 - 34 even. You may complete all the odds if you need extra practice. There will be no corrections or retakes on this unit test, so come prepared! Check your work below.
Answers to Unit 4 Review Assignment
Lesson 4.1 Solving Systems of Equations by Graphing
I will graph systems of equations to model situations and determine approximate solutions to those systems.
Lesson 4-1, problems 8 -28 all
Lesson 4.2 Solving Systems of Equations by Substitution
I will solve systems of equations algebraically using substitution and interpret solutions as viable and nonviable for a given context.
Lesson 4-2. problems 16-25, and 26 - 37
Lesson 4.3 Solving Systems of Equations by Elimination
I will provide the viability of the elimination method and use it to solve systems of equations.
Lesson 4-3, problems 10 - 22, and 23 - 36
Answers to in class worksheet
Lesson 4.4 Linear Inequalities in Two Variables
I will graph linear inequalities with two variables and demonstrate conceptual understanding by specifying constraints for a given context.
Lesson 4-4, problems 10 - 23, 24 - 30
Lesson 4.5 Systems of Linear Inequalities
I will graph and interpret the solution area for a system of linear inequalities in two variables.
4-5 Additional Practice Answers
Lesson 4-5, problems 14-35 all