If the cost is a function depending in the number of sections, how much will 200 sections cost? a. 7,400 b. 7,439 c. 7,556 d. 7,837

Assuming that the relationship is linear, to get the cost of 200 sections we shall proceed as follows:
slope,m=(4664-1889)/(125-50)=37
thus the model will be:
m(x_1-x)=(y_1-y)
thus
37(x-10)=y-409
37x-370=y-409
y=37x+39
thus the cost of 200 sections will be:
y=37(200)+39
y=7439

B] 7439