Name: SAT Math Help & School Math Mastery
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#21342

exponential

applications

medium

90 sec

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An investment account was opened with an initial value of $$1, 200$ . The value of the account doubled every $5$ years. Which equation represents the value of the account $A (t)$ , in dollars, $t$ years after the account was opened?

A.

$A (t) = 1200 (2)^{\frac{t}{5}}$

B.

$A (t) = 1200 (5)^{\frac{t}{2}}$

C.

$A (t) = 1200 (\frac{1}{2})^{\frac{t}{5}}$

D.

$A (t) = 1200 (2)^{5 t}$