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nataly862011 [7]
3 years ago
11

These tables represent an exponential function. Find the average rate of change for the interval from x=9 to x=10

Mathematics
2 answers:
QveST [7]3 years ago
5 0

<u>ANSWER</u>

B. 39,366

<u>EXPLANATION</u>

The y-values of the exponential function has the following pattern

{3}^{0}  = 1

{3}^{1}  = 3

{3}^{2}  = 9

{3}^{3}  = 27

:

:

{3}^{x}  = y

Or

f(x) =  {3}^{x}

To find the average rate of change from x=9 to x=10, we simply find the slope of the secant line joining (9,f(9)) and (10,f(10))

This implies that,

slope =  \frac{f(10) - f(9)}{10 - 9}

slope =  \frac{  {3}^{10} -  {3}^{9} }{1}

slope =  \frac{59049-19683}{1}  = 39366

Therefore the average rate of change from x=9 to x=10 is 39366.

The correct answer is B.

mixas84 [53]3 years ago
5 0

Answer:

Hi there!

The answer to this question is: B

Step-by-step explanation:

The function for the question is: y=3^x

3^10=59049 and 3^9=19683

Then you just subtract the two numbers to get 39366

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