Instructional Video
Imagine Learning Classroom

Learn Zillion: Find a Unit Rate Using a Graph

8th Standards
In this lesson, you will learn how to find unit rates by reading graphs. [5:02]
Instructional Video
Khan Academy

Khan Academy: Direct and Inverse Variation: Inverse Variation Application

9th - 10th Standards
Aplication problem related to stringed instruments by first finding the constant of proportionality and then using it to find another value.
Instructional Video
CK-12 Foundation

Ck 12: Algebra: Direct Variation

9th - 10th
[Free Registration/Login may be required to access all resource tools.] Learn how to recognize and write equations of direct variation and try practice exercises. [11:11]