## Unit 4 Systems

## Study Guide

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

## Unit Lessons

## Lesson 4.1 Solving Systems of Equations by Graphing

## Learning Objective

I will graph systems of equations to model situations and determine approximate solutions to those systems.

## Practice Assignment

Lesson 4-1, problems 8 -28 all

## Lesson 4.2 Solving Systems of Equations by Substitution

## Learning Objective

I will solve systems of equations algebraically using substitution and interpret solutions as viable and nonviable for a given context.

## Practice Assignment

Lesson 4-2. problems 16-25, and 26 - 37

## Lesson 4.3 Solving Systems of Equations by Elimination

## Learning Objective

I will provide the viability of the elimination method and use it to solve systems of equations.

## Practice Assignment

Lesson 4-3, problems 10 - 22, and 23 - 36

## Answers to in class worksheet

## Lesson 4.4 Linear Inequalities in Two Variables

## Learning Objective

I will graph linear inequalities with two variables and demonstrate conceptual understanding by specifying constraints for a given context.

## Practice Assignment

Lesson 4-4, problems 10 - 23, 24 - 30

## Lesson 4.5 Systems of Linear Inequalities

## Learning Objective

I will graph and interpret the solution area for a system of linear inequalities in two variables.

## 4-5 Additional Practice Answers

## Practice Assignment

Lesson 4-5, problems 14-35 all