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Geometry
Period____
Name____________________
Date_____________________
Rotations
Essential Question: What are the properties of a translation?
DO NOW :
A. Whose statement is correct? Explain.
B. Communicate Precisely: Suppose the numbers on the clock face are removed.
Write instructions that another person could follow to move the minute hand from 2 to 6.
Guided Practice:
Example # 1: Draw a Rotated Image
You
Try!
Example #2: Draw Rotations in the Coordinate Plane
You Try !
Example #3: Use Rotations
You Try!
Exit Ticket:
Determine the coordinates of the vertices’ images of triangle after a
counterclockwise rotation of 180∘ around the origin.
Geometry
Period____
Name____________________
Date_____________________
Rotations
Essential Question: What are the properties of a translation?
DO NOW :
Give the coordinates of each image
Guided Practice:
Example # 4: Investigate Reflections and Rotations
You Try!
Example #5:
You Try !
Concept Summary:
Exit Ticket:
Geometry
Period____
Name____________________
Date_____________________
Translations
Essential Question: What are the properties of a translation?
DO NOW :
What is a reflection rule that maps the triangle
and its
image
?
Concept: Translations
Guided
Practice:
Example # 1: Find the Image of a Translation
You Try!
Example # 2: Write a Translation Rule
You Try !
Exit
Ticket:
What is the composition of the transformations written as one transformation?
Geometry
Period____
Name____________________
Date_____________________
Translations
Essential Question: What are the properties of a translation?
DO NOW :
Give the coordinates of the image.
a-
b.
Concept: Translations
Guided Practice:
Example # 4:
You Try!
Practice Problem:
Communicate Precisely Benjamin walks from his house to Timothy’s house
and then to school. Describe Benjamin’s walk as a composition of translations.
If Benjamin walks from his house directly to school, what translation describes
his walk
Exit Ticket:
Geometry
Period____
Name____________________
Date_____________________
Quiz # 4
1- Translate P(3, –6) left 4 units and down 6 units. Give the coordinate of the image point.
a. (–1, –12)
b. (–12, –1)
c. (0, 7)
d. (7, 0)
2- Rectangle ABCD has vertices A(3, 2), B(3, 3), C(5, 3), and D(5, 2). Graph ABCD
and its translation 5 units to the left and 2 units down.
3- ΔPQR has vertices P(6, 6), Q(0, 0), and R(–2, 2). The triangle is translated left 2 unitsand down 1
unit. Without graphing, find the coordinates of Pʹ, Qʹ, and Rʹ.
4- Write a rule that describes the translation shown on the graph below
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