Chirp Rate (Chirps/Second) Temperature

2.4 61.9

3.8 83.6

3.7 71.8

2.0 47

3.4 65.1

3.9 75.8

I was able to find that the least-squares regression line is Y=21.6004+14.354x

If the chirp rate increases by 2 chirps per second, by how much will the predicted temperature increase?

The answer is supposedly about 43 however I am unsure of how to work the problem to get that answer.