The unit u have to use to measure the amount of water in a swimming pool is in Liters :)
The vertex of the graph is (2,-4). It is a minimum as it is the lowest point on the parabola facing upwards. This would be option C.
C(t)= -0.3t^2 + 7.2t - 3.2
12c = 40
Answer:

Step-by-step explanation:
We have the function 
In this case we want to find the value of f0)
To find f(0) you must replace the x in the function with the number 0 and solve as shown below



Therefore

Answer:
Step-by-step explanation: