Answer
The function represents exponential growth.
Work Step by Step
The given function is
$y=2(1.06)^{9t}$
Use power of powers property.
$y=2(1.06^9)^{t}$
Evaluate the power and simplify.
$y=2(1.69)^{t}$
$y=2(1+0.69)^{t}$
Hence, the function represents exponential growth.
