Answer:
b because it cost u more for a certain distance
Step-by-step explanation:
You have the following function:

Derivate implictly the previous expression, as follow:

Where you have used that:

Then, the implicit derivative of the given expression is:

Next, solve for y' as follow:

Answer: -5, 1: -5, 2: -8, 1
Step-by-step explanation: Just flip it on the other side
Answer:
i do not know i think it is B
Step-by-step explanation: