So they give us a bunch of points. Let's just graph this just so we can visualize what this data is telling us a little bit, and I suspect that this might be useful. So this right over here is our temperature axis. This is our temperature at any moment in degrees Celsius, and then this is our time axis, and they gave us the time 0, 2, 5, 9, and 10, or they gave us the temperature at those times. So this is 0, 2, 5 is a little bit further, 5, 9, and then 10. And at time 0, the temperature is 66 degrees Celsius, 66, so it's right over there. At time 2, it is 60 degrees Celsius.