# Homework Help: Inverse to Direct variance

1. Sep 4, 2008

### tornzaer

1. The problem statement, all variables and given/known data

The data below:

I(A): 6 12 18 24
F(R): 240 120 80 60

Rearrange the values of R so that a straight line graph will result.

2. Relevant equations

I have to find a proportional equation for I and F. Something like I = F

3. The attempt at a solution

I understand I have to find the difference in proportion. Something like 60/240 and 24/6 and then I have to compare the numbers. This is where I need help. In addition, I don't know what the "rearrange" means and how will I make a straight line graph?

2. Sep 4, 2008

### Redbelly98

Staff Emeritus
"Rearrange" means put the numbers in a different order.

Example:
1 2 4 3 can be rearranged to give 4 1 3 2.

3. Sep 4, 2008

### tornzaer

I'm afraid not. It's a rule of thumb that scientific results are not "rearranged". I think it's more proportion based. I have to find the linking proportion, but that's where I am stuck.

4. Sep 5, 2008

### Redbelly98

Staff Emeritus
Try arranging the numbers in F(R) in order, from lowest to highest. But first fix this typo: "80" should really be "180".

If you do that, the proportion equation will be practically staring you right in the face.