Question

If f(x) is the total number of bacteria present in a sample after x hours, which of the following statements best describes the meaning of f(2) = 12? The total number of bacteria present in the sample after 12 hours is 2. The total number of bacteria present in the sample after 6 hours is 2. The total number of bacteria present in the sample after 2 hours is 12. The total number of bacteria present in the sample after 6 hours is 12.

Answer 1

Option C is correct that is The total number of bacteria present in the sample after 2 hours is 12.

Explanation:

Given: f(x) is a function which gives total no of bacteria present in sample after x hours.

So, f(c) = 12 means 12 bacteria present in a sample after 2 hours.

Therefore, Option C is correct that is The total number of bacteria present in the sample after 2 hours is 12.

Answer 2

Function is given in the form: f ( 2 ) = 12. There is x = 2, which means the presence of bacteria after 2 hours.
Answer : C) The total number of the bacteria present in the sample after 2 hours is 12.