Scale Factor Coordinate Points
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The vertices of △ ABC are located at A(4,8), B(8,0), and C(-8,4). Which sequence of transformations of △ ABC results in △ A′′B′′C′′?
Rotate △ ABC 90° clockwise around the origin. Dilate the image by a scale factor of 4 with a center of dilation at the origin.
Rotate △ ABC 90° counterclockwise around the origin. Dilate the image by a scale factor of 4 with a center of dilation at the origin.
Rotate △ ABC 90° clockwise around the origin. Dilate the image by a scale factor of 1/4 with a center of dilation at the origin.
Rotate △ ABC 90° counterclockwise around the origin. Dilate the image by a scale factor of 1/4 with a center of dilation at the origin.
Tags
CCSS.8.G.A.3
2.
DRAG AND DROP QUESTION
1 min • 1 pt
Finish the following similarity statement: Figure DEFGHI ∼ Figure (a)
DEFGHI
D'E'F'G'H'I'
ABCDEF
A'B'C'D'E'F'
Tags
CCSS.HSG.SRT.A.2
CCSS.8.G.A.4
3.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Triangle EFG is drawn on the coordinate plane. The triangle is dilated by a scale factor of 1/3, with the center of dilation at the origin, to form triangle E'F'G'. Then, triangle E'F'G' is translated 3 units to the right to form triangle E''F''G''. What is the coordinate of E'' ?
(a)
Tags
CCSS.HSG.CO.A.2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When the scale factor of a dilation is between 0 and 1, the dilation is a reduction (shrinks).
True
False
Tags
CCSS.8.G.A.3
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Figures A, B, C, and D are drawn. The center of dilation is point E. Which of the following figures are similar to figure A? Choose all correct answers.
Figure B
Figure C
Figure D
Tags
CCSS.8.G.A.3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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'(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)
Tags
CCSS.8.G.A.3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How do you write the algebraic notation when the scale factor is 3?
(x, y) goes to (1/3x, 1/3y)
(x, y) goes to (-3x, -3y)
(x, y) goes to (x + 3, y + 3)
(x, y) goes to (3x, 3y)
Tags
CCSS.8.G.A.3
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