

3rd Nine Weeks Review (Transformations)
Presentation
•
Mathematics
•
8th Grade
•
Medium
Standards-aligned
Rakesha Jones
Used 17+ times
FREE Resource
10 Slides • 7 Questions
1
3rd Nine Weeks Review
8th Mathematics

2
Transformations
Reflection (flip)
Rotation (turn)
Translation (slide)
Dilation (enlarge/reduce)
3
Multiple Choice
Which transformation results in the size of a figure changing?
Reflection
Rotation
Translation
Dilation
4
Reflect over the x-axis
Change the y-value (x, y)
5
Reflect over the y-axis
Change the x-value (x, y)
6
Multiple Choice
Triangle ABC is reflected over the x-axis. If point A is located at (-5,7), point B is located at (-4, -7), and point C is located at (9,0). What is new location of point B after the reflection?
(-5,-7)
(-4,7)
(-9,0)
(4,-7)
7
Rotating 180º -clockwise & counterclockwise have the same rule
Change the signs of both x and y
8
Rotating 90º clockwise (270º counterclockwise)
Switch the ordered pair and change the new y-value
9
Rotating 90º degrees counterclockwise (270º clockwise)
Switch the ordered pair and change the new x-value
10
Multiple Choice
If you were to rotate ABCD 90° counterclockwise about the origin, what would the coordinate of A' be?
(-5, 5)
(-3, 5)
(-5, 3)
(-3, 3)
11
Multiple Choice
The point Z(4, -2) is rotated 180 degrees about the origin. What is the image of Z?
Z'(2, 4)
Z'(-4, 2)
Z'(-2, -4)
Z'(-4, -2)
12
Translating
Add-right (x-axis) or up (y-axis)
Subtract-left (x-axis) or down (y-axis)
13
Multiple Choice
How is triangle ABC being translated to triangle A'B'C'?
up 3, left 8
up 9, left 4
down 3, right 8
down 9, right 4
14
Dilating
Multiply the x-value and y-value by the scale factor
15
Multiple Choice
A triangle has vertices A(0,0), B(8,0), C(3,-2). Find the coordinates of the triangle after a dilation with a scale factor of 4. The dilation is (X,Y) --- (4x,4y)
A(3,3), B(4,4), C(-3,-4)
A(-4,8), B(6.5,8), C(7,7)
A(0,0), B(32,0), C(12,-8)
16
Poll
On a scale of 1-4, how confident do you feel about transformations?
1-I'm not feeling confident at all
2-I feel better now than a few weeks ago
3-I can answer most questions with little or no help
4-I've got this!
17
Directions: Go to Canvas and click the link for the independent practice (Monday: Transformation Review (submit))
The rules are posted on Canvas, if needed
3rd Nine Weeks Review
8th Mathematics

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