Complex Numbers in Complex Plane

[simple ice]

Please help, complex number's are messing up my brain

[swift coral]

1. Ask your question and show the work you've done so far. If you've posted a screenshot of a question, specify which part you need help with.
2. Wait patiently for a helper to come along.
3. Once someone helps you, say thank you and close the thread with:

   +close
   

4. Feel free to nominate the person for helper of the week in #helper-nominations
5. Do not ping the mods, unless someone is breaking the rules.
6. If you're happy with the help you got here, and the server overall, you can contribute financially as well:

[blissful saffron]

Do you know how to find the modulus of a complex numbers?

Btw take z = x + iy to simplify easily.

[south wasp]

|z|=r implies a circle with centre (0,0) and radius R and |z-c|=r implies a circle with centre at c(x,y)

Use that info

Where c is a complex number of the form x+iy