Translations
Reflections
Rotations
Vocabulary
Symmetry
100
A translation is when you do this to a figure.
What is move it right, left, up, or down?
or
What is sliding?
100
A reflection is when you do this to a figure.
What is a flipped image or a mirror image?
100
A rotation is when you do this to a figure.
What is turning or spinning about a fixed point?
100
These transformations preserve distance and angle measures.
What are rigid motions?
100
A rigid motion that maps a figure onto itself.
What is symmetry?
200
Find the new coordinates of (10,12) if you translate the point three units left and 4 units up.
What is (7,16)?
200
Find the new coordinates of (3,-2) after you reflect the point over the x-axis.
What is (-3,-2)?
200
Find the new coordinates of (5,4) after you rotate the point 180º counterclockwise.
What is (-5,-4)?
200
Moves or changes a geometric figure in some way.
What is a transformation?
200
A line that reflects a figure onto itself.
What is the line of symmetry?
300
Write the notation of point (x,y) after it moves 3 spots to the left and 7 spots up.
What is (x-3,y+7)?
300
Write the coordinate notation rule of point (x,y) after it is reflected over the y-axis.
What is (-x,y)?
300
Write the coordinate notation rule of point (x,y) after it rotates 90º counterclockwise.
What is (-y, x)?
300
The original figure (input) and new figure (output)
What is the preimage and image?
300
A rotation that maps the figure onto itself.
What is rotational symmetry?
400
Describe the translation for this notation: (x,y) --> (x + 8, y + 4)
What is a translation of 8 units to the right and 4 units up?
400
A picture with one point (-3,4) was reflected over the line y=x. What should be the new coordinates of the point?
What is (4,-3)?
400
Figure QRST has vertices Q(2,-1), R (6,-1), S(6,-3) and T(2,-3). Write the coordinates of vertex R after the rectangle is rotated 90º counterclockwise about the origin?
What is (1,6)?
400
Has an initial point and terminal point; provides both direction and magnitude.
What is a vector?
400
The number of lines of symmetry of this figure.
What is 2 lines of symmetry?
500
The coordinates of the image of ∆LMN after a translation of 6 units to the right and 4 units down. L(0,3) M(6,4) N(3,9)
What is L'(6,-1), M'(12,0), N'(9,5)?
500
Graph triangle DEF after a reflection over the line y=x. D(5,5) E(5,8) F(8,8).
What is D'(5,5), E'(8,5), F'(8,8)?
500
Graph ∆JKL after a rotation of 180º counterclockwise about the origin. J(5,6) K(7,9) L (1,2).
What is J(-5,-6), L(-7,-9), L(-1,-2)?
500
The mirror line.
What is the line of reflection?
500
The angle of rotation for this image/shape.
What is 90 degrees?