Regression for CAPM.. Finance

I am testing CAPM (a financial model) using regression. Would It be correct to say that 'c' (the constant) is equal to the alpha? Thanks
I just had an exam in both applied regression and finance(covering among other things CAPM) and i still didnt quite understand that :)

could you possibly elaborate ?

I would be happy to help!
If you regress the right things, then yes, what is called alpha is "the constant", aka the intercept. The right things are the security's excess return vs. the market's excess return.