Christina "I know that 3 is greater than 2 1/2 So, -3 must be greater than -2 1/2" Breft: "Yes, 3 is greater than 2 1/2 but when you look at their opposites, their order will be
opposite. So that means -2 1/2 is greater than -3."
Whois Correct? How do you know?

Brett is correct.

Step-by-step explanation:

Brett is correct because, in a positive numberline 3 would be greater then 2 1/2, but in a negative numberline the answers are different because higher numbers in the negatives are less than lower numbers like -2 1/2 so -3 is less than 2 1/2. Therefore Brett is correct.

(x) - (y) = (1 + 4i)