The correct answer is: [B]: " f(x) = 4(9)ˣ" .
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Note:
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Given: "f(x) = 4* (3²)ˣ '
Note that: "(3²) = "(3*3) = 9;
So; "4* (3²)ˣ " = 4*(9)ˣ ;
which is: Answer choice: [B]: " f(x) = 4(9)ˣ " .
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