Respuesta :

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Answer:

y=2*0.68^x = exponential decay

Step-by-step explanation:

an exponential equation will look like

y = a(b)ˣ

now, the tale-tell guy is the "b" component, or growth/decay factor.

if "b" is less than 1, is decay, if "b" is greater than 1, is growth.

in this case b = 0.68, that's less than 1, so decay.

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