Systems of Equations: Graphing and Substitution

SYSTEM OF EQUATIONS: GRAPHING AND SUBSTITUTION

In this unit, you will learn how to solve systems of equations graphically and algebraically. Systems of equations are used in real-world situations where two variables need to be determined. Some examples of problems where systems of equations may be applied are determining the maximum profit of sales and predicting the weather.

Introduction (02:31)

Solving Systems of Linear Equations (12:59)

Graph Paper (PDF)

Review Worksheets
The review worksheets are provided to give extra practice in skill areas presented in the unit. The worksheets are optional unless otherwise specified by the instructor. The worksheets are Adobe Acrobat files. Click on the pencil icon to open the document. Save the document to a folder on the computer, and then enter answers for the problems in the textboxes. Once the document is completed, make sure to save it again, and then send the document to the instructor via email. The answer key provided is for the instructors only and is password protected.

	Practice Worksheet: Solving Equations
	Answer Key (Password Protected)
	Practice Worksheet: Solving Equations Crossword Puzzle
	Answer Key (Password Protected)
	Practice Worksheet: Solving Systems by Graphing
	Answer Key (Password Protected)
	Practice Worksheet: More Solving Systems by Graphing
	Answer Key (Password Protected)
	Practice Worksheet: Solving Systems by Substitution
	Answer Key (Password Protected)
	Practice Worksheet: More Solving Systems by Substitution
	Answer Key (Password Protected)