Which is an exponential growth function? f(x) = 6(0.25)x f(x) = 0.25(5.25)x f(x) = –4.25x f(x) = (–1.25)x

Option 2      

Step-by-step explanation:

To find : Which is an exponential growth function?

Solution :

The exponential function general form is

When b>1 then the function is exponentially grow.

When b<1 then the function is exponentially decay.

1)

On comparing with general form, a=6 and b=0.25<1.

Function is not exponential growth function.

2)

On comparing with general form, a=0.25 and b=5.25>1.

Function is an exponential growth function.

3)

On comparing with general form, a=1 and b=-4.25<1.

Function is not exponential growth function.

4)

On comparing with general form, a=1 and b=-1.25<1.

Function is not exponential growth function.

Therefore, option 2 is correct.

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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if i know what this is maybe i can

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