Direct Variations

 Direct Variation Problems

To be used after viewing the PowerPoint

Identify direct variations:

Remember that you can rearrange the problem by adding the x or y value so that the problems are in the y=mx+b  form.

1. y=x
2. 2x+y=3
3. 8x+2y=0
4. 2x-3y=0
5. -x+y=4
6. y=5x-1
7. x-3y=0
8. 2.4x+6=1.2y

Here are some helpful websites to use

http://www.quia.com/cc/571997.html 

http://www.onlinemathlearning.com/direct-variation.html

http://www.freemathhelp.com/direct-variation.html

ANSWERS

1. Direct  variation ; 1
2. Not a direct variation
3. Direct variation; -4
4. Direct variation; 2/3
5. Not a direct variation 
6. Not a direct variation
7. Direct variation; 3
8. Not a direct variation