Answer:
Population of bacteria at time 
is 
Step-by-step explanation:
The complete question is
If 
represents the number of bacteria in a culture at time t, how many will there be at time
Solution
Given
The population of bacteria after time t is equal to
Population when at time
We will substitute the value of time in above equation.
She will do both again in 30 days.
She waters every two days and 2 is a even number.
She trims her plants every 15 days and 15 is an odd number.
When you add two odd numbers you get an even 15 + 15 = 30
2 × 15 = 30
1. You have the function 
2. You know that 
with 
, because the division by zero is not defined. So , 
for 
where 
is a integer number.
3. Then, to find the domain of the function given in the problem, you must make 
Where 
is odd number.
4. Therefore:
5. Finally, the domain is: 
The answer is:
It reveals the slope and a single point on the line
