Measuring Temperature. Two of the most commonly used scales for measuring temperature are the Celsius and Kelvin scales.

If you let y denote Celsius temperature and x denote Kelvin temperature, you can express the relationship between those two scales with the linear equation y = x − 273.15.

a. Determine b0 and b1.

b. Find the Celsius temperatures corresponding to the Kelvin temperatures 100◦, 200◦, 300◦, and 400◦.

c. Graph the linear equation y = x − 273.15, using the four points found in part (b).

d. Apply the graph obtained in part

(c) to estimate visually the Celsius temperature corresponding to a Kelvin temperature of 283.15◦. Then calculate that temperature exactly by using the linear equation as given above.