Why is - x/y equivalent to x/-y? Explain

They both have the same sign convention.

Step-by-step explanation:

-x/y is ≡ to x/-y

because irregardless of which variable having the negative sign it still gives the same answer. e. g

let x = 2, y = 4

-2/4 = - 0.5 and 2/-4 = - 0.5