Direct Variation Models: An Application (Algebra I)

Here you'll learn how to identify and plot direct variations. You'll also learn how to determine the constant of proportionality and solve real-world problems using direct variation models.

This video demonstrates a sample use of direct variation models.

This is part of CK-12’s Algebra I: Graphs of Equations and Functions. See more at:

1. Points in the Coordinate Plane:

2. Graphs in the Coordinate Plane:

3. Graphs of Linear Equations:

4. Horizontal and Vertical Line Graphs:

5. Intercepts and the Cover-Up Method:

6. Slope:

7. Rates of Change:

8. Graphs Using Slope-Intercept Form:

9. Graphs of Linear Models of Direct Variation:

10. Graphs of Linear Functions:

11. Problem Solving with Linear Graphs: