**From the January 2016 Common Core Algebra I Regents**

Put 1300(1.02)^7 into the TI-84, it will come out to more than 1300!!

The money is growing and also since 1.02 >1, the money is increasing.

So it has to be **growth which is either answer 2 or 4**

The exponential growth formula given on the Regents reference sheet is way complicated.

Here is a much much better one:

In our equation A = 1300 (1.02)^7

1300 is the principal or starting amount and the time = 7

The number in the parentheses is (1.02) which is equal to (1 + r)

Therefore r = .02 which is 2 cents or 2%

Now look at answers (2) and (4)

Notice that .02% growth would have the decimal .0002 as r and this is not the case.

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