Question

Function f(x) represents the population of bacteria x hours after 9 a.m. What does F(2)-F(1) represent?​

Answer 1

f(2)-f(1) => Difference between the count of bacteria between 11AM and 10AM

Explanation:

Here x is the number of hours after 9AM

f(2) means the count of bacteria after 2 hours of 9AM i.e. at 11AM

f(1) means the count of bacteria after 1 hour of 9AM i.e. at 10 AM

f(2) - f(1) will give us the difference between the count of bacteria between 11 AM and 10 AM

Hence,

f(2)-f(1) => Difference between the count of bacteria between 11AM and 10AM