
Review for Dilations Quiz
Presentation
•
Mathematics
•
9th - 12th Grade
•
Medium
+2
Standards-aligned
Jennifer Fuller
Used 9+ times
FREE Resource
6 Slides • 10 Questions
1
Review for Dilations Quiz
by Jennifer Fuller
2
Poll
How prepared do you feel for your dilations quiz?
Awesome! Gonna ace it!
Meh. I'll do OK, but I need to study.
Horrible :( Worried I won't pass.
3
Multiple Choice
A dilation is given by the transformation (x, y) → (2/3x, 2/3y). Will this produce an enlargement or reduction?
reduction
enlargement
There is no way to tell without drawing the figure
Could be a reduction or an enlargement depending on where the center of dilation is
4
Multiple Choice
A dilation is given by the transformation (x, y) → (3/2x, 3/2y). Will this produce an enlargement or reduction?
reduction
enlargement
There is no way to tell without drawing the figure
Could be a reduction or an enlargement depending on where the center of dilation is
5
6
Multiple Choice
What is the scale factor for this dilation?
2
1/2
3
1/3
7
Multiple Choice
What is the scale factor for this dilation?
2.5
2
0.5
3
8
9
Multiple Choice
The graph shows the dilation of quadrilateral MNOP with the origin as its center. Which rule describes this transformation?
(x, y) → (3x, 3y)
(x, y) → (x + 3, y +3)
(x, y) → (x - 3, y - 3)
(x, y) → (1/3x, 1/3y)
10
Multiple Choice
Triangle MNL undergoes a dilation centered at the origin. The result is the green triangle. Which rule describes the dilation?
(x, y) → (5x, 5y)
(x, y) → (3x, 3y)
(x, y) → (15x, 15y)
(x, y) → (−5x, −5y)
11
12
Multiple Select
Which characteristics are always true for dilations? Check all that apply.
Rigid Transformation
Creates similar shapes
Always transformed about the origin
Angles stay the same
13
14
Multiple Choice
Consider that ΔLMN is similar to ΔPQR and the measure of ∠P is 80°. What is the measure of ∠L?
80°
100°
20°
90°
15
Multiple Choice
Consider that the length of rectangle A is 21 cm and its width is 7 cm. Which rectangle is similar to rectangle A?
A rectangle with a length of 9 cm and a width of 3 cm.
A rectangle with a length of 20 cm and a width of 10 cm.
A rectangle with a length of 18 cm and a width of 9 cm.
A rectangle with a length of 27 cm and a width of 3 cm.
16
Review for Dilations Quiz
by Jennifer Fuller
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