
Transformations and Dilations
Presentation
•
Mathematics
•
8th Grade
•
Medium
Standards-aligned
Charles Neal
Used 53+ times
FREE Resource
6 Slides • 17 Questions
1
by Charles Neal
2
Multiple Choice
A type of transformation where a geometric figure slides horizontally, vertically, or both.
dilation
translation
rotation
reflection
3
Multiple Choice
A reflection ____________________.
turns a figure around a point.
slides an object form one place to another.
flips or mirrors an object across a line.
changes the size of an object.
4
Multiple Choice
A transformation that “turns” a figure about a fixed point is a _____________________.
rotation
translation
reflection
dilation
5
Multiple Choice
Translated figures are always __________________.
Congruent
Bigger
Smaller
Rotated
6
Multiple Choice
What type of transformation is this?
Rotation
Reflection
Translation
Enlargement
7
Multiple Choice
8
Multiple Choice
If the dotted figure is the image, the original figure was reflected over the ...
x-axis
y-axis
rotation 180
translation 4 left
9
Multiple Choice
10
Multiple Choice
11
12
Multiple Choice
13
14
15
Multiple Choice
16
Multiple Choice
A dilation produces a congruent figure
True
False
17
Multiple Choice
18
Multiple Choice
19
Multiple Choice
20
Multiple Choice
State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor of 2.
B' (2 , 4.5)
B' (-8 ,-18)
B' (8 ,18)
B' (9 ,4)
21
Multiple Choice
Dilate the figure by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?
A(3,3) B(6,6) C(9,3)
A'(9,9) B'(18,18) C'(27,9)
A'(6,6) B'(9,9) C'(12,6)
A'(0,0) B'(3,3) C'(6,0)
A'(1,1) B'(2,2) C'(3,1)
22
Translations move each point the same distance and same direction.
Rotations move each point the around a center point the same amount of degrees.
Reflections move each point the same distance across a line of reflection.
Dilations enlarge or shrink a shape by the same scale factor.
23
R.4: Identify Reflections, Rotations, and Translation
R.7: Translations - Find the Coordinates
R.12: Reflections - Find the Coordinates
R.14: Rotations - Find the Coordinates
S.3: Dilations - Find the Coordinates
by Charles Neal
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