Mathematical Problem

[Jolly chap*]

Umm ... I'm pretty sure I posted a similar thread a long time ago but I can't find it anymore.

I need to find a formula for a damaging trigger that's like this:

Level 1 - deals 10 damage.
Level 2 - deals 20 damage.
Level 3 - deals 40 damage.
Level 4 - deals 80 damage.

But I need to find a formula for it. Can anyone help? +rep if you can and I can give it you.

 

[LightChaosma]

10*((level of ability being cast) power 2)

 

[Jolly chap*]

So Level 2 - 20 damage will be ...

10*((2)^2) ? That would be 10 x 4 and it would make 40.

 

[LightChaosma]

10*(2 power (level of ability being cast -1)

 

[Jolly chap*]

Thank you!!