Dilations and Mixed Practice
Orientation and Congruence
Rotations
Reflections and Translations
Mixed Practice
100
What is a motion rule for a dilation that creates a reduction?
A. (x, y) --> (3x, 3y)
B. (x, y) --> (x, -y)
C. (x, y) --> (0.25x, 0.25y)
D. (x, y) --> (x + 0.25, y + 0.25)
C. (x, y) --> (0.25x, 0.25y)
100
True or False?
A rotation results in changed area.
Translations preserve congruence.
Dilations change area.
Rotations change perimeter.
False
True
True
False
100
True or false? Rotations create a larger image.
False
100
What is the motion rule for a reflection across the x-axis?
(x, y) --> (x, -y)
100
A square has an area of 25 square meters. The square is dilated by a scale factor of 2. What is the area of the new square?
A. 50
B. 100
C. 625
D. 12.5
B. 100
200
What transformation is this?
90 clockwise Rotation
270 counterclockwise Rotation
200
What kind of transformation preserves orientation but not congruence?
Dilations
200
True or False? This is a motion rule for a rotation.
(x, y) --> (-x, y)
False
200
A square was translated 4 units to the left and 2 units up. What motion rule matches this translation?
A. (x, y) --> (-4x, 2y)
B. (x, y) --> (x - 4, y +2)
C. (x, y) --> (y, -x)
D. (x, y) --> (x + 4, y - 2)
B. (x, y) --> (x - 4, y +2)
200
What transformation is this? What motion rule would go with this transformation?
A. (-x, y)
B. (x, y) --> (x + 9, y - 8)
C. (2x, 2y)
Translation
B
300
What transformation is this?
Translation
300
What kind of transformation preserves orientation and congruence?
A. Rotation
B. Reflections
C. Translations
D. Dilations
Translations and Rotations
300
True or False? Rotations preserve congruence.
True
300
What motion rule matches this transformation?
(x, y) --> (-x, y)
300
What transformation is this? What motion rule matches this transformation?
A. (x, y) --> (x - 3, y - 3)
B. (x, y) --> (y, -x)
C. (0.33x, 0.33y)
Dilation
C
400
Create a motion rule that would result in an enlarged dilation.
Create a motion rule that would results in a reduced dilation.
Scale factor greater than one.
Scale factor less than one.
400
Which motion rule does not preserve congruence?
A. (x, y) --> (-x, -y)
B. (x, y) --> (x + 4, y - 8)
C. (x, y) --> (2x, 2y)
D. (x, y) --> (x, -y)
C. (x, y) --> (2x, 2y)
400
What motion rule matches this transformation?
(x, y) --> (-x, -y)
400
True or False?
Translations preserve orientation.
Translations preserve congruence.
True
True
400
What kind of transformation is this? What motion rule matches the transformation?
A. (x, y) --> (x + 2, y - 3)
B. (x, y) --> (2x, 2y)
C. (x, y) --> (x, -y)
Translation
A
500
What side length corresponds to GF?
What angle corresponds to angle M?
LN
E
500
Which motion rule(s) do not preserve orientation?
A. (x, y) --> (4x, 4y)
B. (x, y) --> (x + 2, y - 3)
C. (x, y) --> (x, -y)
D. (x, y) --> (y, -x)
C. (x, y) --> (x, -y)
500
True or false?
Rotations result in a new area.
Rotations do not change perimeter.
Rotations preserve congruence.
Rotations preserve orientation.
False
True
True
True
500
True or False?
Reflections preserve orientation.
Reflections preserve congruence.
Reflections do not change area or perimeter.
False
True
True
500
A triangle has an area of 8 square centimeters. The triangle has been dilated by a scale factor of 1/2. What is the new area?
2 units squared.