Question

8. DETAILS HARMATHAPBR1 9.4.011. Y NOTES KOUR TEACHER The demand for a unit of a product depends on the price in dor) cording to - 1. for Find and explain the meaning of the instantaneous we of change of demand with respect to price when the price is as follows (a) $9 O price increases by 31, the demand will drop pproximately 2 units If price increases by the demand will drop approximately 1 O price decreases by 51, the demand will drop approximately 2 units Ost price increases by 31. the demand will increase approximately 2 units O price decreases by 52 the demand will drop approximately 1 (b) O price increases by 31. the demand will increase proximately 1/4 un O price decreases by 5025, the demand will drop approximately 1 units If price increases by si, the demand will drop approximately 1/4 un O price decreases by 51, the demand will drop approximately 1/4 If price increases by $0.25, the demand will drop approximately I units NOTIS ASK YOUR TEACHER 9. DETAILS HARMATHAPBR1 9.5.010. A travel agency will plan a group tour for groups of sure 40 or larger. If the group contains a phe per permacher's credced by forecastove the then the revenue is given by the equation shown below, where x is the number of additional people above 40 R(x) - (40+)360 - 10x) Find the marginal revenue if the group contains 45 people, UY NOTES ASK YOUR TEAC

Answer 1

92 108 -1 i fos p>0. P Now, dq ap 108 2 • (-4694"} - 54 PP Now, dq dp 2 - 54 9.9 2 2 P= $9 If price increases by $1, the demand dieop approximately when pe $36, da dp 2 54 36 36 2-0.252 H 4. 1p 2436 If price increases by $1, the demand will drop approximately M4 uniti 2 RIK) = (40+2) (360 -10%) Novo, R' (2) d (40+) (360-100) da (40+%) (-10) + (360 -10%).1. -400 -107 + 360 - 10% 2 2 2 -40 -20% :: R'(45) 2 -40 - 20X45 2 -940

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