Mathematics
Grade10
Easy
Question
Suppose the demand d, in units sold, for a company’s jeans at a price x, in dollars, is d(x) = 500 - 3x. If revenue=price × demand, write the rule for the function r(x) , which represents the company’s expected revenue in jean sales. If the price is $ 30, how much revenue will the company earn?
- r(x) = 500 + 3x , $ 590
- r(x) = 500x + 3x2 , $ 17700
- r(x) = 500 - 3x , $ 410
- r(x) = 500x - 3x2 , $ 12300
Hint:
