Problem 55E

55. Let $H(t)$ be the daily cost (in dollars) to heat an office building when the outside temperature is $t$ degrees Fahrenheit.

(a) What is the meaning of $H^{\prime}(58) ?$ What are its units?

(b) Would you expect $H^{\prime}(58)$ to be positive or negative? Explain.

 

Step-by-Step Solution