Question

If |x|=|y| and x≠y, which of the following must be true?
Select all that apply.
-x+y=0
-xy<0
-x^2=y2
-None of the above.

Answer 1

@paki

Answer 2

the hyphens are minus signs?

Answer 3

no, they are the options

Answer 4

like i mean just to show the options

Answer 5

so. if \(|x|=|y|\) but \(x\neq y\), then the only posibility left is \(x=-y\).

Answer 6

can you explain? :/

Answer 7

so the first 3 options r true (or must be true).

Answer 8

to real numbers have the same absolute value if either they equal or they r of opposite sign

Answer 9

ahhhhhhh okay i see, thanks :)

Answer 10

u r welcome