Giving Brainliest if correct!!

Sean created this table to represent the balance of his loan. y, over a period of months, x. The equation for the line of best fit for Sean's table of data is y=-115.9x + 8,007.30.

According to the line of best fit and using _, Sean can estimate that the balance of his loan will reach $0 in month _.

First blank options:
1. Interpolation
2. Extrapolation

Second blank options:
1. 71
2. 69
3. 68
4. 59