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## Understand that a linear function in which f(0) = 0 is called a directly proportional relationship. 0706.1.5

1. Algebra: Proportion Word Problems - explanation and examples [direct and inverse proportion explained]
2. Direct Proportion - this explanation provides a clearly explained example
3. Direct Proportion - explanation and practice problems [Caution: metric units and UK monetary units used]
4. Inverse Proportion - this 15 slide show has several examples
5. Direct Proportion - a 37 slide PowerPoint show with several "starter questions"
6. Exploring Linear Relationships - [4:59] video lesson from Khan Academy 7. How to Determine Whether Two Variables Are Directly Proportional - explanation and several graphs
8. Interpreting Linear Relationships - multiple-choice quiz from Khan Academy 9. Linear Equations - explanation from Math is Fun
10. Linear Functions - explanation with examples
11. Math Word Problems [Direct Variation or Direct Proportion] - eight question multiple choice quiz 12. Recognizing Linear Functions - [4:01] video lesson from Khan Academy 13. Solving Problems Involving Direct Proportion - [close the subscription screen to get to the problems] some good practice problems are presented here, UK units used
14. Solving Proportion Problems - four examples with detailed explanation Internet4classrooms is a collaborative effort by Susan Brooks and Bill Byles. 