In an experiment, a heated cup of coffee is removed from a heat source and then allowed to cool in a room at a constant temperature. The x-axis represents the time since the cup was removed from the heat source (minutes), and the y-axis represents the temperature (°F). The scatter plot shows the temperature, in degrees Fahrenheit (), of the coffee immediately after removal and at 10-minute intervals thereafter. Based on the trend shown in the scatter plot, the temperature of the coffee appears to be approaching a constant value. What is the best estimate for this constant temperature, which represents the room temperature?
