How do you know if a specific case is an exponential function

Exponential functions have the form f(x) = bx, where b > 0 and b ≠ 1. Just as in any exponential expression, b is called the base and x is called the exponent. ... With the definition f(x) = bx and the restrictions that b > 0 and that b ≠ 1, the domain of an exponential function is the set of all real numbers.

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I too don't know

594 square inches

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vote !

the correct answers i think are b. and d.

give me brainliest if it is correct!