The variable in the radical <em>x </em>cannot be less than 0 as that wouldn’t be defined. So, the maximum that <em>x </em>can be is 0, and . So, 0+2=2, and <em>y </em>is greater than or equal to 2.
Domain is x is greater than or equal to 0 because you cannot square a negative. So, it must not be less than 0. It could be 0 because square root of 0 is just 0.
So there is a real and imaginary axis the midopint is just the average of them average between the reals is (5-3)/2=2/2=1 average between imaginaries is (18i+2i)/2=20i/2=10i
