Math Problem Statement

Use the graph of f(x) to evaluate the following: The average rate of change of f from x = 1 to x = 3 is ____. Give your answer as an integer or reduced fraction.

Solution

To determine the average rate of change of f(x)f(x) from x=1x = 1 to x=3x = 3, we need to use the formula for the average rate of change:

Average Rate of Change=f(x2)f(x1)x2x1\text{Average Rate of Change} = \frac{f(x_2) - f(x_1)}{x_2 - x_1}

where:

  • x1=1x_1 = 1
  • x2=3x_2 = 3

Now, let’s find the values of f(1)f(1) and f(3)f(3) from the graph.

  1. Locate f(1)f(1): From the graph, f(1)=4f(1) = 4.
  2. Locate f(3)f(3): From the graph, f(3)=1f(3) = 1.

Now, substitute these values into the formula:

Average Rate of Change=f(3)f(1)31=1431=32=32\text{Average Rate of Change} = \frac{f(3) - f(1)}{3 - 1} = \frac{1 - 4}{3 - 1} = \frac{-3}{2} = -\frac{3}{2}

So, the average rate of change of f(x)f(x) from x=1x = 1 to x=3x = 3 is 32-\frac{3}{2}.

Would you like further details on this process or have additional questions?


Here are five related questions to further your understanding:

  1. What does a negative average rate of change indicate about a function over an interval?
  2. How would the average rate of change be different if f(1)f(1) and f(3)f(3) were closer in value?
  3. Can you find the average rate of change from x=2x = 2 to x=4x = 4 for this function?
  4. How does the average rate of change relate to the slope of a secant line on a graph?
  5. If f(x)f(x) was linear, how would the average rate of change vary across different intervals?

Tip: The average rate of change formula is similar to finding the slope of a line connecting two points on a graph. This can help you interpret the function's behavior between these points.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Average Rate of Change
Graph Analysis
Slope Calculation

Formulas

Average Rate of Change = (f(x2) - f(x1)) / (x2 - x1)

Theorems

Slope of a Secant Line

Suitable Grade Level

College Algebra