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Serhud [2]
2 years ago
15

PLEASE HELP!!!!!!!!!!

Mathematics
1 answer:
AnnZ [28]2 years ago
8 0

Given:

The graph of an exponential function.

To find:

The function in the form of f(x)=ab^x.

Solution:

The general form of an exponential function is

f(x)=ab^x                ...(i)

From the given graph it is clear that the function passes through the points (0,4) and (1,7). It means these points will satisfy the function.

For x=0 and f(x)=4,

4=ab^0

4=a(1)

4=a

For x=1 and f(x)=7,

7=ab^1

Putting a=4, we get

7=4(b)

\dfrac{7}{4}=b

Substitute a=4 and b=\dfrac{7}{4} in (i).

f(x)=4\left(\dfrac{7}{4}\right)^x

Therefore, the required exponential function is f(x)=4\left(\dfrac{7}{4}\right)^x.

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