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Module 8.2 Lesson 3 Translations Day 2.notebook
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May 04, 2016
Do Now:
Module 8.2 Lesson 3 Day 2
Translating Lines
HW
pg 27-28 # 1 & 2
Evaluate the following expression.
(2 - 5)3 - 2 + 10
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Module 8.2 Lesson 3 Translations Day 2.notebook
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6.Homework pgs 2122 # 610
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Module 8.2 Lesson 3 Translations Day 2.notebook
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Module 8.2 Lesson 3 Translations Day 2.notebook
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Module 8.2 Lesson 3 Translations Day 2.notebook
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EVERY POINT on the figure
undergoes the SAME transformation
Description = a verbal expression
Describe each translation using words like units, up, down, left, and right.
pg 23
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Module 8.2 Lesson 3 Translations Day 2.notebook
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S.23Do Now
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Module 8.2 Lesson 3 Translations Day 2.notebook
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Question 1:If a point on the coordinate plane moves horizontally, which coordinate changes? The x or y coordinate?
Question 2 : If a point on the coordinate plane moves vertically, which coordinate changes? The x or y coordinate?
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S.24
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Mapping Translation (x,y) (x+2, y-7)
Example 1: What is the image of the points in figure ABC (x,y) (x-7,y-3) ?
A (3,1), B (4,4), C (1,2)
Example 2: What is the images of the points in figure ABC (x,y) (x+4,y+1)?
A (-3,-1), B (-4,-4), C (-1,-2)
S.25
ex)
A`(-4,-2),B`(-3,1),C`(-6,-1)
A`(1,0),B`(0,-3),C`(3,-1)
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Module 8.2 Lesson 3 Translations Day 2.notebook
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May 04, 2016
Mapping Translation (x,y) (x+2, y-7)
Example 3: What is the images of the points in figure EFG (x,y) (x+4,y+1)?
E (-3,-1), F (-4,-4), G (-1,-2)
S.25
ex)
E`(-6,0),F`(-7,-3),G`(-4,-1)
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Notation Translation T(2,-3)
For the following examples, use the following coordinate points to translate figure ABC.
A (-1,6) B (2,4) C (-3,-2)
Example 1: T(2,3) Example 2: T(1,-4)
pg 26
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T (2,-3)
(x,y) (x + 2, y 3)
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Module 8.2 Lesson 3 Translations Day 2.notebook
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Important Aspects of a Translation:1. A translation occurs when a figure slides across a coordinate plane.
2. If a figure is translated horizontally (left or right) the x coordinate changes.
3. If a figure is translated vertically (up or down) the y coordinate changes.
4. A translated figure will never change in size or shape but only in its location.
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