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 a. the total number of bacteria present in a sample after 12 hours is 2. b. the total number of bacteria present in the sample after 6 hours is 12. c. the total number of bacteria present in the sample after 2 hours is 12. d. the total number of bacteria present in the sample after 6 hours is 12.

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

Step-by-step explanation:

The given statement :  f(x) is the total number of bacteria present in a sample after x hours.

It means the independent quantity = Number of hours

i.e. The independent variable in the given situation = x

Also, the dependent quantity =  Total number of bacteria

i.e. The dependent variable in the given situation = f(x)

Therefore, the meaning of "f(2)=12" is the total number of bacteris present in sample is 12 after 2 hours.

step-by-step explanation:

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