Question

Dave wants to rent a car for the week. The cost of the car rental is a flat amount of $50 plus $0.12 per mile traveled.

Answer 1

Answer:

B

Step-by-step explanation:

They give it in plain words.

$C(d) = 50 + 0.12d$

And as the d is used once and not as a exponent, we can consider this as a variable.

Answer 2

Answer:

B) or D) could be used

Step-by-step explanation:

If it says that the car costs $50 even if you haven't moved a mile, that is the independent variable.

The $0,12 depends on how many miles the car travels.

As it moves in a linear way as the miles grow, it is a linear function.

So :

B) C(d)= 50 + 0,12d linear function

And it is also valid to write:

D) C(d)= 50 + (0,12)d linear function