Which of the following is a degenerate circle?

x^2 + y^2 = 1
x+y = 2
x^2+y^2=-1
(x-4)^2 + (y-2)^2 = 0

The answer is (x-4)^2 + (y-2)^2 = 0

Step-by-step explanation:

I just took the test and it was right.

sorry, i can't understand your question. will later if you describe more clearly!

: )

x -

median = 1.25

range = 12-14.5

interquartile = q12-q14.5

y -

median = 1

range = 15-17

interquartile = q15-q17