The number x of bicycle helmets people are willing to buy per week from a retail chain at a price of $p is x = 800 - 6p + p^2 + 25. 20 <= p <= 100 (a) Find dx/dp (b) Find the demand and the instantaneous rate of change of demand with respect to price when the price is $75. Interpret the results.
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The number $x$ of bicycle helmets people are willing to buy per week from a retail chain at a price of $\$ p$ is given by $x=1,000-60 \sqrt{p+25} \quad 20 \leq p \leq 100$ (A) Find $d x / d p$ (B) Find the demand and the instantaneous rate of change of demand with respect to price when the price is $\$ 75 .$ Write a brief interpretation of these results.
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The number $x$ of bicycle helmets a retail chain is willing to sell per week at a price of $\$ p$ is given by $x=80 \sqrt{p+25}-400 \quad 20 \leq p \leq 100$ (A) Find $d x / d p$ (B) Find the supply and the instantaneous rate of change of supply with respect to price when the price is $\$ 75 .$ Write a brief interpretation of these results.
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