What is the turning or spinning of a figure around a fixed point called?
A rotation
100
Does the letter A have rotational symmetry?
No
100
What is the rule for a dilation of 5?
(x,y)--(5x,5y)
100
If point A(3, -4) in a triangle is dilated by a scale factor of 3, what are the coordinates of point A's image?
(9, -12)
100
What is another name for a translation?
a slide
200
What is the reduction or enlargement of an image called?
A dilation
200
When a figure is rotated 180 degrees, what happens to the coordinates?
They both change to the opposite.
200
What is the rule for translating a figure 3 units right and two units down?
(x,y)--(x+3, y-2)
200
If point P(2, 3) is reflected in the x-axis, what are the coordinates of the image?
(2,-3)
200
Does the letter S have line symmetry?
No
300
What is a transformation in which a mirror image is produced by flipping a figure over a line called?
A reflection
300
A figure is rotated 90 degrees counterclockwise. This is equivalent to what other rotation?
270 degrees clockwise
300
What is the rule for translating a figure 6 units up and 4 units left?
(x,y)--(x-4, y+6)
300
If point N(-5, -8) is reflected in the y-axis, what are the coordinates of the image?
(5,-8)
300
How many lines of symmetry does a regular octagon have?
Eight
400
What is a turn of 180 degrees or less that produces an image that matches the original figure called?
Rotational Symmetry
400
If segment CD is rotated 90 degrees clockwise, what are the coordinates of its image? The coordinates of the original are C (-3, 1) and D (-3,-2).
C(1, 3) and D(-2, 3)
400
What is the rule for translating a figure 3 units down?
(x,y)--(x, y-3)
400
If triangle ABC is dilated by a scale factor of 2/3, what are the coordinates of the image? The original points are A(-3,3) B(-6,-3) and C(-6,9).
The points of the image are A(-2,2) B(-4,-2) and C(-4,6).
400
What is the angle of rotation for an equilateral triangle?
120 degrees
500
Figures that match exactly when folded in half have__________.
Line Symmetry
500
If segment AB is rotated 90 degrees counterclockwise, what are the coordinates of its image? The coordinates of the original are A(-6, -2) and B(-2,-4).
The coordinates of the image are A(2,-6) and B(4,-2).
500
The coordinates of segment AB are A(-7,4) and B(-3,2). Segment AB is translated. If the coordinates of the image for point A are (-4,-3), what are the coordinates for point B?
(0,-5)
500
If point T(-4,3) is reflected in the x-axis and then the y-axis, what are the coordinates of the final image?
(4,-3)
500
What is the angle of rotation of a regular pentagon?