Question

Which one of these points lies on the given circle?

(-2.5, -2.5)
(1,3)
(2,-square root of 5)
(-square root of 3, -square root of 7)

Answer 1

Answer: C.
`(2, √(5))`

Explanation:

The x coordinate is 2, which is 2 units right of (0, 0)

- √5 is the y coordinate

- (√5) = - (2.23) = -2.23

The y coordinate is -2.23 or 2.23 down from (0, 0)

The rest of the ordered pairs are slightly off the edge of the circle.