Unit 9 Lesson 2 Reflections
Unit 9 Lesson 2: Reflections
Lesson Overview
Reflections
What You Will Learn
- finding the reflection of images and figures
Overview
In this lesson, you will learn to find the reflection of images and figures. You will show your learning by finding the reflections of different shapes.
Essential Understanding
The size and shape of a geometric figure stay the same when you flip the figure across a line. Its orientation reverses.
- Click the textbook icon to read Pages 389-394 in your course textbook.
This course is based on a textbook that is viewable by clicking on the textbook icon. Keep the textbook open while you go through the lesson so that you may refer to it throughout the lesson.
Lesson 2: Reflections
Resource Videos
Graphing Reflections
Line of Reflection
Proceed to the Next Page
Prepare for Application
Instructions
You have now studied Reflections. It is now time to demonstrate your learning.
Try the activities below on your own. You should be able to answer these before beginning the practice.
Create an extra journal called 'Unit 9: Lesson 2 activities' and do these in your journal.
Activity 1
What is the image of P(3, 4) reflected across the line x = -1?
Activity 2
Refer to the following graph. What is the image of reflected across the x-axis?
Activity 3
Refer to Problem 3 on page 391 of your textbook. Suppose your classmate began to solve the problem by reflecting point R in line t. Will her method work? Explain.