If f of x is equal to 2 to the x th power and you compare f of 2 to f of 4 , by which factor has the function grown?

Since f(x) = 2^x, f(2) = 2^2 = 4 and f(4) = 2^4 = 16. The growth factor is the later value divided by the earlier value: 16 ÷ 4 = 4. So the function grew by a factor of 4.

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