Hi, could someone please show me how to sketch this region?

$\displaystyle A = \left \{ Z\:\epsilon \: \mathbb{C}\, \left | \ \left |Z - i \right | < 3\: and \: Re\, Z \geq 0 \}$

Also, when sketching something like this, do I label the axes x and y, or Re and Im?

Any help would be very much appreciated.

Thanks!