I Need Immediate Help For Solving Electric Potential

[Bk8907]

I Need Immediate Help For Solving Electric Potential!

Ok, here is the problem.

I have an x and y axis.

a +6 micro coulomb charge is .3m north from the origin.

a -10 micro couloumb is .2m east from the origin

and a +12 micro coulomb is .15m south from the origin.

how do i solve this?

please help me immediatly.

 

[Mathgician]

What is the formula for electric potential and how do you add(hint) the potentials on the charges?