Answer:
Since there is one value of y for every value of x in (−4,8),(−2,4),(0,1),(2,4), ( 4,8), this relation is a function. The relation is a function.
A) is the answer. The island in decaying by 10% each year, which means the amount will change within the period of the decay.
Hope this Helps! :)
I’m not extremely good at math but I think you need to make -x-y=1 into y=mx+b form and then solve your new equation!
It depends on the function