Transformations
What type of transformation flips a figure over a line?
Reflection
A dilation makes a figure larger or smaller but keeps the same ______.
Shape or Angles
What does the notation (x,y)→(x+3,y) represent?
Translation 3 units right
Congruent figures have the same ______ and ______.
Shape and Size
What month does the fall season officially begin in the U.S.?
September
A triangle is slid 5 units to the right. What transformation is this?
Translation
A dilation has a scale factor of 2. What would these coordinates (3, 2) change to?
(6, 4)
What does the notation (x,y)→(–x,y) represent?
Similar figures have the same shape but different ______
sizes
What holiday do people celebrate on the 2nd Monday of every October?
Columbus Day
A figure is turned 90° clockwise about the origin. What transformation is this?
Rotation
A dilation has a scale factor of 1/2. What would these coordinates (2, 6) change to?
(1, 3)
What does the notation (x,y)→(2x,2y) represent?
Dilation with scale factor 2
A triangle has side lengths 3, 4, 5. Another triangle has side lengths 6, 8, 10. Are they congruent, similar, or neither?
Which fruit is most associated with fall festivals and Halloween?
Pumpkin
A square is reflected over the x-axis. If one vertex is at (3, –4), what are the new coordinates?
(3, 4)
A dilation has a scale factor of 4. What would these coordinates (3, 2) change to?
(12, 8)
What does the notation (x,y)→(2/3x,2/3y) represent?
Dilation with scale factor of 2/3
A quadrilateral has sides 5 cm each. Another quadrilateral has sides 5 cm each, but one is rotated 90°. Are they congruent, similar, or neither?
congruent
What pigment breaks down in leaves, causing the red, yellow, and orange colors in fall?
Chlorophyll
A triangle is rotated 180° about the origin. If one vertex is at (–2, 5), what are the new coordinates?
(2, -5)
A dilation has a scale factor of 3/4. What would these coordinates (4, 8) change to?
(3, 6)
What does the notation (x,y)→(–y,x) represent?
Rotation 90° counterclockwise
Triangle A has vertices at (0, 0), (2, 0), and (0, 4). Triangle B has vertices at (0, 0), (4, 0), and (0, 8). Are these triangles congruent, similar, or neither?
Similar
The autumn equinox marks the day when day and night are nearly equal. Around what date does this happen each year in the U.S.?
September 22 or 23