For the following demand function , find ( a ) E, and ( b ) values of y ( if any , at which total revenue is maximized . 9 = 40 - ( a ) E = 16 )...

please make sure you express it so i can verify and understand it; thank you

For the following demand function , find ( a ) E, and ( b ) values of y ( if any , at which total revenue is maximized .9 = 40 -( a ) E =16 ) Select the correct choice below and , if necessary , fill in the answer box to complete Your choice .A. No values of & maximize the total revenue*CE . The total revenue is maximized at 4 =