Answer: Option 'c' is correct.
Step-by-step explanation:
Since we have given that

We need to find the number of units in order to minimize cost.
We first derivative w.r.t. x,

For critical points:

Now, we will check whether it is minimum or not.
We will find second derivative .

So, it will yield minimum cost.
Minimum cost would be

Hence, At 150 units, minimum cost = $4000
Therefore, Option 'c' is correct.
Answer:
final point is (-8,-9)
Step-by-step explanation:
when u relfect 8,9 over the x axis u get 8,-9 because relfetion of x axis= (x,-y) but the question asks u to relfect that over the y axis which is (-x,y) and u get (-8,-9)
Integers are whole numbers so 2
Answer:
Step-by-step explanation:
See attached image.