Vocabulary
Translations
Reflections
Rotations
Dilation
Symmetry
100
Changing the size of an object without changing its shape. The size of the object may be enlarged or reduced based on the scale factor.
What is dilation?
100
Describe the algebraic rule: (x-2, y+1)
What is 2 units left, 1 unit up?
100
What is the algebraic rule for a reflection across the line y = x?
What is (y, x)?
100
The rule for rotation of 180 degrees is (x, y) -->
What is(-x, -y) ?
100
A scale factor of less than one means...
What is that the image will be a reduction of the pre-image?
100
A line that reflects a figure onto itself is called...
What is the line of symmetry?
200
the figure after a transformation has occurred
What is the image?
200
The resulting figure of A(3, 1) when it is translated 2 units up.
What is A'(3, 3)?
200
Find the coordinates of X' when XY with X(-3, 1) and Y(-1, 4) is reflected over the x-axis.
What is X'(-3, -1)?
200
If A(-1, 3) and you were to rotate ABCD 90° counterclockwise about the origin, what would the coordinate of A' be?
What is (-3, -1)?
200
The following point (-6, 0) represents the pre-image under a dilation centered at (0, 0) with a scale factor of ½. Find the image.
What is (-3, 0)?
200
What are the angles of rotation for a regular nonagon?
40, 80, 120, 160, 200, 240, 280, 320, 360
300
a rigid motion transformation in which all points of a figure move the same distance in the same direction.
What is translation?
300
A figure is translated 5 units down. Write the algebraic representation that best describes this transformation?
What is (x, y-5)?
300
Find the image of the point (3, 2) that has undergone a reflection across the y - axis
What is (-3, 2)?
300
The red triangle represents what type of rotation:
What is 90 degrees clockwise?
300
Given the following dilations centered at the origin, what is the scale factor, k?
S(9, -6) S'(6, -4)
What is k =2/3?
300
A regular polygon has rotational symmetry for an angle of 60 degrees. How many sides does it have?
What is 6 sides?
400
A transformation that turns a figure about a fixed center point. Each point and its image are the same distance from the fixed point.
What is rotation?
400
Find the coordinates of M' and N' when MN with M(-4, -1) and N(-3, -3) is translated 5 units right and 2 units up.
What is M'(1, 1) and N'(2, -1)?
400
The triangle was reflected across the x-axis. Which algebraic representation best describes this transformation?
What is (x,y)→(x,−y) ?
400
Find the image of (- 5, 3) after it performs a 180 degree rotation
What is (5, -3)?
400
A triangle has vertices A(0,0), B(8,1), C(3,-2). Find the coordinates of the triangle after a dilation centered at the origin. The dilation is (X,Y) --- (2x,2y)
What is A'(0, 0), B'(16, 2), C'(6, -4)
400
Name that shape:
180 degrees of rotational symmetry and 2 lines of symmetry through its diagonals
What is a rhombus?
500
Operations that alter the form of a figure. Examples: translations, reflections, and rotations.
What is a transformation?
500
How is trapezoid ABCD with points A(-2, 6), B(1, 6), C(2,3) and D(-2, 3) translated to trapezoid A'B'C'D' with image points A'(3, -2), B'(6, -2), C'(7, -5) and D'(3, -5)?
What is translated 5 units to the right and 8 units down?
500
Triangle ABC has vertices A(2, - 1), B(- 2, 5), and C(4,2). Find the image coordinates after a reflection over the line y = -x
What is A'(1, -2), B'(-5, 2), C'(-2, -4) ?
500
Find the coordinates of A' and B' when A(-3, -2) and B(-1, 2) are rotated clockwise 270 degrees.
What is A'(2, -3) and B'(-2,-1)?
500
State the coordinates of the pre-image of the given points A'(-8, -16) B' (4, 12) C'(0, -4) under a dilation centered at the origin with a scale factor of 4.
What is A(-2, -4), B(1,3), C(0, -1)?
500
What is the name of the four-sided figure that has 180 degrees of rotational symmetry and no lines of symmetry
What is a parallelogram?