Function f is an exponential function.



x −4 −2 0 2 4
f(x) 316 34 3 12 48
By what factor does the output value increase as each input value increases by 1?

Respuesta :

Answer:

The output value increased by factor 2.

Step-by-step explanation:

The general form of the exponential function is

[tex]f(x)=ab^x[/tex]

Where, a is initial value and b is growth factor.

From the given table it is noticed that at x=0, the value of f(x) is 3. It means the initial value is 3.

[tex]a=3[/tex]

The another value of f(x) is 12 at x=2.

[tex]f(3)=ab^2[/tex]

[tex]12=(3)b^2[/tex]

[tex]4=b^2[/tex]

[tex]b=2[/tex]

The required function is

[tex]f(x)=3(2)^x[/tex]

Since the growth factor is 2, therefore the output value increased by factor 2.

Answer:

2

Step-by-step explanation:

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