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Scatterplots: advanced

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This chart has one plot of data that starts in the lower left and trends toward the upper right at an increasing rate.
The x-axis is temperature and has 4 major tick marks from 10 to 40, in steps of 10. The minimum value is 0 and the maximum value is 50. The y-axis is power and has 5 major tick marks from 0.5 to 2.5, in steps of 0.5. The minimum value is 0 and the maximum value is 3.
The data set consists of 9 points of data. The leftmost data point is at x = 0 and y = 0.3. The rightmost data point is at x = 40 and y = 2.8.
The plot in the T, P-plane shows the power, P, in watts, consumed by a chamber to maintain a constant internal temperature of T degrees Celsius. Which of the following equations best models the relationship between P and T?
Choose 1 answer: