Need some help

A piece of pottery is removed from a kiln and allowed to cool in a controlled environment. The temperature (in degrees Fahrenheit) of the pottery after it is removed from the kiln for various times (in minutes) is shown in the following table. Time (min) |Temperature (OF) 15 2150 20 2100 30 2000 60 1700 (a) Find a linear model for the temperature of the pottery after t minutes. T (t ) = (b) Explain the meaning of the slope of this line in the context of the problem. The value of the slope means that the temperature is decreasing at a rate of OF per minute. (c) Assuming the temperature continues to decrease at the same rate, what will be the temperature of the pottery in 3 hours? OF