7. The graph below shows the relationship between the amount of money in Sarah's
savings account over a period of time. Which
of the following statements is NOT true about
the relationship?
200
180
760
ACCOUNT BALANCE
7401
120
700
80
60
40
20
1 2 3 4 5 6 7 8 9 10
NUMBER OF WEEKS
A. After 5 weeks, Sarah has $ 100 in her
account.
B. If Sarah has a balance of $60, then 7
weeks have passed.
C. The relationship is proportional.
D. The situation can be represented by the
equation y = 200 - 20x.