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Post Test: Essential Learning
Tony opens a savings account. The graph represents the amount of money in dollars that Tony expects to deposit in his account in terms of the
number of years since opening the account.
2,500
7,500
5,000
2,500 + 5,000x
5,000 + 2,500x
5,000 + 7,500x
y=
12,500
10,000
Deposited (dollars)
7.500
5,000
rate of change =
dollars per year