A researcher is cooling a metal. She cools the metal so that the temperature of the metal drops at a constant rate. After 11 minutes of cooling, the metal is 321 c. After 21 minutes, the metal is 131 c.
(a)Choose the statement that best describes how the time and the temperature of the metal are related. Then fill in the blank.
As time increases, the temperature of the metal decreases.
As time increases, the temperature of the metal increases.
(b)What was the temperature of the metal when the researcher started cooling it?