Question

The latest demand equation for your Yoda vs. Alien T-shirts is given by: q = −40x + 800 where q is the number of shirts you can sell in one week if you charge $x per shirt. The Student Council charges you $400 per week for use of their facilities, and the T-shirts cost you $4 each. Find the weekly cost as a function of the unit price x. ...?

Answer 1

Cost function=fixed cost + variable cost =400+(something)
okay let's think we can only sell q shirts per week and each shirt cost us 4 dollars so i think the Cost function =400+4q =400+4(-40x+800) =400-160x+3200 =-160x+3600
but i'm not sure of the this terminology