A dilation is a transformation that ______________ or ____________ a figure.
Enlarges or Reduces
100
Two angles whose sum is 90 degrees.
What are complementary angles?
200
If Triangle ABC is translated 2 units down and 3 to the right, what are the new coordinates for B?
A(-3,5) B(-2,2) C(-4,1)
B'(1,0)
200
Triangle ABC is reflected across the y axis. What are the coordinates of the image?
A(-3,5) B(-2,2) C(-4,1)
A'(3,5) B'(2,2) C(4,1)
200
A scale factor smaller than one will __________ a figure; a scale factor greater than one will ___________ a figure.
Reduce/Enlarge
200
Two angles whose sum is 180 degrees.
What are supplementary angles?
300
Quadrilateral ABCD is translated (x-4,y+3). What are the new coordinates for C?
A(1,1) B(2,4) C(4,4) D(6,1)
C'(0,7)
300
Quadrilateral ABCD is reflected across the x axis. What are the coordinates of the image?
A(1,1) B(2,4) C(4,4) D(6,1)
A'(1,-1) B'(2,-4) C'(4,-4) D'(6,-1)
300
What happens when you rotate a vertical line 270 degrees clockwise?
It becomes a horizontal line.
300
A pre-image has vertices at the following coordinates. (2,2), (3,-3), (-1,-1), and (-2, 2). After a dilation the coordinates of the image are (4,4), (6,-6), (-2,-2), and (-4, 4). What is the scale factor.
2
400
Triangle ABC is reflected across the y=5. What are the coordinates of the image?
A(-3,5) B(-2,2) C(-4,1)
A'(-3,5) B'(-2,8) C'(-4,9)
400
A figure is dilated with a scale factor of 4. If the ordered pairs of the pre-image are (2,0), (1,-4), and (-4,-2).
(8,0), (4,-16), (-16,-8)
500
Quadrilateral ABCD is reflected across the x=-1. What are the coordinates of the image?
A(1,1) B(2,4) C(4,4) D(6,1)