the computer loses 50%, percent of its value each year. (Answer)
In order to answer the question, it's absolutely essential to have
enough of a description of the object to know which of its parts
'X', 'Y', and 'Z' are, and what other parts it may have.
An ideal way to accomplish this would have been for you to include the
picture that accompanies the question, wherever you copied it from.
As x heads off to negative infinity (towards the left side), the curve slowly approaches the horizontal line y = 1. It will never actually touch or cross this horizontal line. It simply gets closer and closer. Think of it as an electric fence of sorts.
Therefore the horizontal asymptote is y = 1
You can say 8/10 = 80/100 ⇒ 80/100 is bigger than 79/100 :)))