Decide if the function is an exponential function. if it is, state the initial value and the base.

y = - 7.3 ⋅ 2x

exponential function; base = - 14.6; initial value = 1

exponential function; base = x; initial value = - 7.3

not an exponential function

exponential function; base = 2; initial value = - 7.3

The function written y = -7.3 (2^x) ineed is an exponential function.

The base is 2 (the exponent is x)

And the initial value is when x = 0 => -7.3(2^0) = -7.3(1) = -7.3.

Then, the answer is the fourth option of the list: Exponential function; base =2; initial value = -7.3

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