When Joes Cluib charges 90 for anual dues he has 100 members
When Joe\'s Cluib charges $90 for anual dues, he has 100 members. For every $1 Joe reduces the annual dues, his club gains two members. Use an equation to determine he price Sanchez should charge to maximize his revenue from annual dues 4-2x Sikeich the graph of ga-+8
Solution
Revenue= Price * quantity
Price,P(x)=90-x
Quatity, Q(x)= 100+2x
R(x)=(90-x)(100+2x) =-2x2+80x+9000
Revenue is maximum at the vertex
x=-b/2a=-80/2(-2) =20
