Im thinking it's false. 18 isn't even between 4 and 9.
Answer:

Step-by-step explanation:
The marginal cost function, C'(x), is the derivate of the cost function, C(x).
Therefore, we can obtain the cost function by finding the integral of the marginal cost function:

Where 'a' is a constant and represents fixed costs. If fixed costs are $3,000, the cost function is:

It’s not b or d so it’s either a or c. Hope this helped
Answer:
For this question there appears to be absolutely no association. The points are all over the place and there is not consistent factors at play here.