air fare club offers membership at $300.00, at least 50 people must join.For every member over 50 their fare will be reduced by $2 for every member. Due to space limits only 125 passengers will be allowed. how many memberships will maximize the revenue?

Answer 1

done

http://www.jiskha.com/display.cgi?id=1350928794

Answer 2

revenue = #members * rate
y = x(300-2(x-50)) = 2x(200-x)

max value occurs midway between the roots (0,200) at x=100

Answer 3

Thank you, spent way too much time on this one problem, you all are great :)