1. Lesson 7

1.8. Explore 4

Mathematics 30-2 Module 7

Module 7: Exponents and Logarithms

 

A logarithmic regression equation

  • can be of the form y = a + b ln x
  • has end behaviour that extends from quadrant IV to quadrant I (increasing) or quadrant I to quadrant IV (decreasing)

textbook

Read “Example 2” on pages 463 to 465 of your textbook to see how a logarithmic regression can be performed and used to solve problems. Also, read and note the section titled “Key Idea” on the top of page 466, which summarizes logarithmic regressions.
 
You have now used exponential and logarithmic regressions to model data. In Try This 3, you will use your understanding of the characteristics of both these types of equations to match equations to their graphs.

 

Try This 3

 

Open Matching Exponential and Logarithmic Equations and Graphs, and match each equation with the correct corresponding graph.

 

 

This is a play button that opens Matching Exponential and Logarithmic Equations and Graphs.