Mixed Review
Authored by M. Harper
Mathematics
8th Grade
CCSS covered
Used 6+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
If Hector dilates Figure A with the center of dilation at (0, 0) and a scale factor of 2, what will be the coordinates of the vertices of the similar figure that results?
(-2, -3), (-2, 3), (2, 3), and (2, -3)
(-3, -2), (-3, 2), (3, 2), and (3, -2)
(-4, -6), (-4, 6), (4, 6) and (4, -6)
(-6, -4), (-6, 4), (6, 4), and (6, -4)
Answer explanation
When dilating a figure, multiply each x and y by the scale factor.
Tags
CCSS.8.G.A.3
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
If Hector translates Figure A 1 unit to the left, what will be the coordinates of the vertices of the similar figure that results?
(-4, -2), (-4, 2), (2, 2), and (2, -2)
(-2, -2), (-2, 2), (4, 2), and (4, -2)
(-3, -1), (-3, 3), (3, 3) and (3, -1)
(-3, -3), (-3, 1), (3, 1), and (3, -3)
Answer explanation
When translating a figure, subtract from the x when moving left, add to the x when moving right, subtract from the y when moving down, and add to the y when moving up.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The equation is a function because for each y-value there is only one x-value.
The equation is a function because for each x-value there is only one y-value.
The equation is not a function because 5 is a y-value for more than one x-value.
The equation is not a function because no y-value is the same as its x-value.
Tags
CCSS.8.F.A.1
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Brianna says that the graph represents a function. Is Brianna correct?
Yes, each x-value has exactly one y-value.
Yes, it passes the vertical line test.
No, it does not pass the vertical line test.
No, each y-value does not have exactly one x-value.
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Figure ABCD is dilated by a scale factor of 3 with a center of dilation at the origin to form figure A'B'C'D'. What are the coordinates of B'?
(3, 6)
(1, 2)
(9, 18)
(6, 12)
Answer explanation
When dilating a figure, multiply each x-value and each y-value by the scale factor.
Tags
CCSS.8.G.A.3
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Which of the following describes the sequence of transformation?
Dilation by a scale factor of 3 followed by a reflection over the y-axis.
Answer explanation
To find the scale factor, divide the new by the old.
Tags
CCSS.8.G.A.4
CCSS.HSG.SRT.A.2
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