Answer:
9/16
Step-by-step explanation:


Derivative rule:


Here, n=-1, so

Evaluating this at x=-4 gives 9/16
Answer:
11
Step-by-step explanation:
First, find how much a token costs.
4.40 ÷ 8 = .55
Then divide 6.05 by .55 to get 11.
In a line with negative slope, as x increase, y decreases.
It is a an exponential function. And it is not A.
The answer is B)