Maleia is tracking her running training program. The table gives her 5K run time at the end of each month.


Month Time (minutes)
1 47
2 43
3 39
4 36
5 35
6 33


What is the equation for the line of best fit where x represents the month and y represents the time?
y = −2.78x + 33.6
y = −2.78x + 48.5
y = 2.78x + 33.6
y = 2.78x + 48.5