Math Problem Statement

Given the table for f(x) and g(x) below, find the following:

x f(x) g(x) 0 7 6 1 4 1 2 6 2 3 3 7 4 9 3 5 8 5 6 0 9 7 1 0 8 5 4 9 2 8

a) Average rate of change of g(x) from x=6 to x=7 is =

b) Average rate of change of f(x) from x=2 to x=6 is =

Solution

To find the average rate of change of a function over a given interval, we use the formula:

Average Rate of Change=f(b)f(a)ba\text{Average Rate of Change} = \frac{f(b) - f(a)}{b - a}

where f(a)f(a) and f(b)f(b) are the function values at the endpoints of the interval [a,b][a, b].

a) Average rate of change of g(x)g(x) from x=6x = 6 to x=7x = 7:

  1. From the table:

    • g(6)=9g(6) = 9
    • g(7)=0g(7) = 0
  2. Apply the formula: Average Rate of Change of g(x)=g(7)g(6)76=091=91=9\text{Average Rate of Change of } g(x) = \frac{g(7) - g(6)}{7 - 6} = \frac{0 - 9}{1} = \frac{-9}{1} = -9

So, the average rate of change of g(x)g(x) from x=6x = 6 to x=7x = 7 is 9-9.

b) Average rate of change of f(x)f(x) from x=2x = 2 to x=6x = 6:

  1. From the table:

    • f(2)=6f(2) = 6
    • f(6)=0f(6) = 0
  2. Apply the formula: Average Rate of Change of f(x)=f(6)f(2)62=064=64=1.5\text{Average Rate of Change of } f(x) = \frac{f(6) - f(2)}{6 - 2} = \frac{0 - 6}{4} = \frac{-6}{4} = -1.5

So, the average rate of change of f(x)f(x) from x=2x = 2 to x=6x = 6 is 1.5-1.5.

Would you like more details on these calculations, or do you have any further questions?

Here are 5 related questions you might find useful:

  1. What is the significance of the average rate of change in a function?
  2. How does the average rate of change relate to the slope of a line?
  3. Can you explain how the rate of change of a linear function differs from that of a non-linear function?
  4. How would you calculate the average rate of change if given a continuous function instead of a table of values?
  5. How can you determine if a function is increasing or decreasing based on the average rate of change?

Tip: The average rate of change between two points on a function is the slope of the line that connects those points. This concept is crucial when analyzing linearity and trends in data.

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Math Problem Analysis

Mathematical Concepts

Average Rate of Change
Functions
Algebra

Formulas

(f(b) - f(a)) / (b - a)

Theorems

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Suitable Grade Level

Grades 8-10