SAT Math Practice Question #35110 - SATify | SATify

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SAT Math Practice Question #35110 - SATify | SATify

#35110

functions

exponential

hard

90 sec

For the function $f$ defined by $f (x) = 2 (3^{x})$ , which of the following expressions is equivalent to $f (x + 1)$ in terms of $f (x)$ ?

A.

$f (x) + 1$

B.

$3 f (x)$

C.

$f (x)^{3}$

D.

$2 f (x) + 3$