Posted by Jessica on .
Assume it costs Microsoft $4,700 to manufacture 7 Xbox 360s and $8,690 to manufacture 14. Obtain the corresponding linear cost function.

business calculus 
Steve,
if x is the number of Xboxes,
x increases by 7, cost increases by 3990
so, the slope is 3990/7 = 570
cost = 570x + 710