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8. The demand funcTion for a cerTain producT is given by p: _04q+80003q520,000 where p denoTes The uniT price in dollars and q denoTes The quanTiTy demanded. a. DeTermine The revenue funcTion R. b. DeTermine The marginal revenue funcTion R '. c. CompuTe R 'ESUUUJ. WhoT can you deduce from your resulTs. d. If The ToTal cosT in producTion q uniTs is given by CH; |=200 q+300,000 e. Find The marginal profiT funcTion P ' CompuTe P 'lSUUUJ and P 18000]. g. SkeTch The graph of The profiT funcTion. WhaT can you deduce from your resulTs. 7h 9. Find The derivaTive of hlxi=|5x3+12x115} 1 10. Find a cubic polynomial whose graph has horizonTal TangenTs aT (-2.5) and (2.3). x2+5x-3 11. ' ' CompuTe The derivaTIve of X, 6XJ+3XZ 7X\" . -2 12. Find an equaTion for The TangenT line To f'X'=3 x aT X=l. x +4x1 2 - 2 . 13. LeT f'X'=XJ+X \"12X+5. Find The values of x for which flxi=0