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nydimaria [60]
3 years ago
5

Find the equation of the exponential function represented by the table below:

Mathematics
1 answer:
Klio2033 [76]3 years ago
6 0

Answer:

y =5(3)^x

Step-by-step explanation:

Given

The attached table

Required

Determine the equation of the table

The table represents an exponential function. So, we make use of

y = ab^x

When x = 0, y= 5.

So:

y = ab^x becomes

5 = ab^0

5 = a*1

5 = a

a = 5

When x = 1; y = 15

So;

y = ab^x becomes

15 = a * b^1

15 = a * b

Substitute 5 for a

15 = 5 * b

Divide both sides by 5

\frac{15}{5} = \frac{5 * b}{5}

3 = b

b = 3

Substitute values for a and b in: y = ab^x

y =5(3)^x

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