Question

Equations of Exponential Functions

A 30-gram sample of bacteria has some unknown disease that is killing the bacteria. The amount of bacteria is measured each day and the results are shown in the table.


What is the amount of bacteria on the 8th day?


a. On the eighth day, the bacteria is 1.72 grams

b. On the eighth day, the bacteria is 19.90 grams

c. On the eighth day, the bacteria is 6.23 grams

d. On the eighth day, the bacteria is 6271.89 grams


Please select the best answer from the choices provided

Answer 1

B. On the eighth day, the bacteria is 19.90 grams

Explanation:

I calculated it logically

Answer 2

The amount of bacteria on the 8th day is estimated to be 6.23 grams, deduced from the decreasing trend observed in the data. This choice is the most reasonable estimate among the provided options. (option C)

To find the amount of bacteria on the 8th day, you can observe the pattern in the data provided. The amount of bacteria appears to be decreasing each day.

On the 6th day, the amount is 22.05 grams.

Since the bacteria is decreasing, it would be less than 22.05 grams on the 8th day.

Among the given options, the closest answer is:

c. On the eighth day, the bacteria is 6.23 grams.

This is the most reasonable estimate based on the decreasing trend observed in the data.