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SAT Math Practice Question #35584 - SATify | SATify

#35584

pattern

exponential

functions

hard

90 sec

The table above gives some values for the function $f$ . Which of the following equations could define $f$ ?

$f (x) = 18 (3^{x})$

$f (x) = 18 (x /3)$

$f (x) = 18 (3^{- x})$

$f (x) = 6 (3^{- x})$