Directions: • Take a cup of very hot water, and measure the temperature of the water. Place the cup in a safe place, and measure the temperature every five seconds for a total of one minute. Record this information. • Enter the information into two lists on your graphing calculator. In the first list, enter the time, in seconds, since the experiment began. In the second list, enter the temperature of the water for each indicated time. • Make a scatter plot, where the independent variable is time, in seconds, and the dependent variable is temperature. What type of regression function would best model this data? Explain your reasoning. • Write the regression equation with all
constants rounded to the nearest thousandth. Using this equation,
determine the temperature of the water after 25 seconds have passed.
Determine the temperature of the water after two hours have passed.
Do both of these answers seem logical to you? Explain.
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