Question

Can someone check these for me?

http://prntscr.com/kk3sr

Answer 1

Virus alert?

Answer 2

It's print screen.

Answer 3

I've used it on other questions, it's a screenshot of my assignment. I just want to know if my answers were correct...

Answer 4

Both the answers are right:)
(x-a)^2+(y-b)^2=r^2
(a, b) is the coordinate of the centre of the circle. r is the radius

Answer 5

Thank god, I was worried. I really appreciate your help!

Answer 6

welcome:)