Question

Someone plzzz help asap! Will give brainliest and a lot of points. Pls give a clear answer and show work. You are the best thank you!
A biologist is studying the growth of a particular species of algae. She writes the following equation to show the radius of the algae, f(d), in mm, after d days:

f(d) = 9(1.04)d

Part A: When the biologist concluded her study, the radius of the algae was approximately 12.81 mm. What is a reasonable domain to plot the growth function? (4 points)

Part B: What does the y-intercept of the graph of the function f(d) represent? (2 points)

Part C: What is the average rate of change of the function f(d) from d = 3 to d = 9, and what does it represent? (4 points)

(10 points)

Answer 1

Answer:

for the question above... what does the rate of change repersent?

Step-by-step explanation:

Answer 2

Part A: After 9 days the radius of algae was approximately 12.81 mm. The reasonable domain to point is (0,9).

Part B: The 9 on the y-intercept represents the amount of algae the experiment started with.

Part C:  (12.81-10.12)/7=0.38