   Chapter 2.2, Problem 49E Finite Mathematics and Applied Cal...

7th Edition
Stefan Waner + 1 other
ISBN: 9781337274203

Solutions

Chapter
Section Finite Mathematics and Applied Cal...

7th Edition
Stefan Waner + 1 other
ISBN: 9781337274203
Textbook Problem

In Exercises 47-54, model the data using an exponential function f ( x ) = A b x . [HINT: See Example 1.) x 0 1 2 f ( x ) 10 30 90

To determine

To calculate: The model of following data by using the exponential function f(x)=Abx.

 x 0 1 2 f(x) 10 30 90
Explanation

Given Information:

The data table is,

 x 0 1 2 f(x) 10 30 90

Calculation:

Consider the following data table,

 x 0 1 2 f(x) 10 30 90

From the data table it can be observed that for every time value of x increases by 1, the value of f(x) is multiplied by 3. This suggest that f(x) is an exponential function fitting data.

Use the formula of exponential function,

f(x)=Abx

Substitute x=0 in the equation f(x)=Abx.

f(0)=Ab0

As f(0)=10 and b0=1

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