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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