Answer:
Increasing
8%
day
Step-by-step explanation:
Recall that the general formula for an exponential function increasing at a given rate is;
A= P (1 + r)^t
Where r is the rate, P is the initial value and t is the time taken.
Given;
F(x) = 4000(1.08)^t/7
1.08 = 1 + 0.08
This means that r = 0.08 or 8%
Where t is in weeks and seven days make one week hence the function increasing by t/7 refers to rate of increase per day.
