第5章多項式関数と有理関数Polynomial and Rational Functions

A pre-owned car dealer has just offered their best candidate, Nicole, a position in sales. The position offers 16% commission on her sales. Her earnings depend on the amount of her sales. For instance, if she sells a vehicle for $4,600, she will earn $736. As she considers the offer, she takes into account the typical price of the dealer's cars, the overall market, and how many she can reasonably expect to sell. In this section, we will look at relationships, such as this one, between earnings, sales, and commission rate.

中古車の販売店が、最有力の候補者 Nicole に営業の職を持ちかけたところである。この職では売上の16%が歩合として支払われる。彼女の収入は売上の額に依る。たとえば、車を1台4,600ドルで売れば736ドルの収入になる。この申し出を考えるにあたって、彼女はこの店の車のふつうの値段、市場全体、そして無理なく売れると見込める台数を勘定に入れる。この節では、収入・売上・歩合率のあいだの、このような関係を見る。