Respuesta :

Answer:

B

Step-by-step explanation:

An exponential decay function can be written in the form;

V = I(1-r)^t

A can be written as

y = 0.75^x

y = (1-0.25)^x

B cannot be written as that

c as y = 14(1-0.38)^x

d as y = (1-0.83)^x

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Answer:

[tex]\boxed{\sf B: \: y = 5.6^x }[/tex]

Step-by-step explanation:

An exponential decay is when we input the input value and the output value decreases or in simple words, as the value of x increases, the value of y decreases.

We can see option B.

[tex]\sf y = 5.6^x[/tex]

When we increase the value of x, the value of y will no doubt increase. So the function is not an exponential decay function.

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