
CL Dilations topic 2
Presentation
•
Mathematics
•
8th Grade
•
Easy
Standards-aligned
JORGE PUENTE
Used 13+ times
FREE Resource
2 Slides • 10 Questions
1
Topic 2
Dilations
Some text here about the topic of discussion
2
Open Ended
What is a dilation of a figure?
what happens to the figure after a dilation?
A dilation of a figure is ......
3
What is a dilation ?
Transforms a figure
Some text here about the topic of discussion
when a shape is dilated
it can ENLARGE (get larger)
or
it can REDUCE(get smaller)
The image will keep the SAME shape
but NOT the same size.
4
Poll
The image represents a dilation , by looking at this image does it represent an ENLARGEMENT or a REDUCTION?
enlargement
reduction
neither
5
Poll
what scale factor (k) best represents the dilation shown
k=1
k=1/2
k=2
6
Poll
the image represents a dilation, does this image represent an enlargement or a reduction ?
enlargement
reduction
neither
7
Open Ended
in order to perform a dilation that will shrink the figure the scale factor has to be ........
SENTENCE STEM
in order to create a smaller image , the scale factor has to be a number .......
8
Multiple Select
Select all THREE algebraic rules that will represent a REDUCTION
(use your calculator to turn fractions into decimals CONTROL )
(1/2x,1/2y)
(3/4x,3/4y)
(4/3x,4/3y)
(10/15x,10/15y)
(3/2x,3/2y)
9
Open Ended
How do you know when a scale factor represents an enlargement?
A scale factor represents a enlargement when ________________
10
Multiple Choice
what is the scale factor of the figures shown?
IMAGE
PREIMAGE
3
2
1.5
0.5
11
Multiple Select
select TWO of the algebraic rules that represent a dilation
(2x,2y)
(1/4x,1/4y)
(x+4 ,y-3)
(x+1, 3y)
12
Open Ended
John says that the following rule represents a dilation
(x+2,y-2)
is john correct? why or why not
i think John is ____________ because ___________
Topic 2
Dilations
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