Geometry

[Pia-AlexandraM876]

I find this topic very hard and would be greatful for an explanation:

A circle is drawn in the xy-coordinate plane. If there are n different points (x, y) on the circle such that xy = 0, then the possible values of n are


a) 0, 1, or 2

b) 0, 2, or 4

c) 0 or 4

d) 0, 2, 3, or 4

e) 0, 1, 2, 3, or 4

[RonPurewal]

please note that "i have no idea how to do this problem" is not a valid way to begin a discussion.

1/
first of all, this is almost certainly not true.
you probably started the problem in some way, and then got stuck at some very specific point(s) along the way.

2/
in the unlikely event that this actually is true—i.e., if you actually looked at this problem and thought, "wow, i have NO idea what's even happening here, and NO clue of ANYTHING i can possibly do"—then you're better off leaving the problem and returning to it later.

also, our problems have answer keys.
so, unless you post a specific question(s), we can't add any value here anyway—we would basically just end up reproducing the answer key. (:

so...
please post specifics about the issue(s) you're having with the problem.
what was your approach?
what did you understand?
what didn't you understand?
where did you get stuck?
did you try any alternate approaches?
etc.

thanks.