Answer:
I might be wrong double check but it's something like
Step-by-step explanation:
4x/3-40/3
(not to sure on that so don't be mad if it's wrong)
Answer:
(2,√21)
Step-by-step explanation:
The circle centered at the origin has equation:

Any point that satisfies this equation lie on this circle.
When x=2, we substitute and solve for y.

Take square root to get:

Therefore (2,-√21) and (2,√21) are on this circle.
From the options, (2,√21) is the correct answer
4,3,2,1,0,-1, -2, -3, -4,