Tom and Jack spend a certain amount of money from their accounts each week at a pet shelter.

The table shows the relationship between the amount of money (y) remaining in Tom's account and the number of weeks (x):

Function 1:
Number of Weeks
(x) Amount Remaining (dollars)
(y)
1 60
2 53
3 46
4 39

The equation shows the relationship between the amount of money, y, remaining in Jack's account and the number of weeks, x:

Function 2:

y = –8x + 60

Which statements states and explains which function shows a greater rate of change?
Function 1, because Tom spends $7 each week and Jack spends –$8 each week
Function 1, because Tom spends $21 each week and Jack spends $52 each week
Function 2, because Jack spends $60 each week and Tom spends $21 each week
Function 2, because Jack spends $8 each week and Tom spends $7 each week