# Thread: relation between variables

1. ## relation between variables

What is c in relation to m when...

C M
1 12
2 20
3 28

Please help, I have no idea how to work this out and I have to include my working.

2. Originally Posted by suchabeautifuldisaster
What is c in relation to m when...

C M
1 12
2 20
3 28

Please help, I have no idea how to work this out and I have to include my working.
M = 4 + 8C

though I just ended up with this by reasoning, not by using a formula... :s

If C = 1, M = 12 and if C = 2, M = 20 then if C = 0, M = 4

So 4 is your 'base value' (if I'm allowed to put it this way) and 8 is added for each time C...