Translations
Reflections
Rotations
Vocabulary
Algebraic Directions
100
What do you do to a figure when you translate it?
Slide it
100
What does it mean to reflect an image?
Flip it
100
When you rotate a figure, what are you doing to the figure?
Turn it
100
What is a pre-image?
The original image
100
What do you need to know to perform a translation?
The rule (how many units to move left/right, and up/down)
200
What directions can you slide a figure for a translation? (Hint: There are 4)
Up, Down, Left, or Right
200
If your pre-image figure is in quadrant III and you reflect it across the y axis, what quadrant would your image be in?
Quadrant IV
200
What changes in a rotation: Shape, size, or position?
Position
200
What does congruent mean?
Same size and shape
200
What are the two "D's" you need to know to perform a rotation?
1. Direction (counterclockwise) and
2. the Degree (90, 180, 270)
300
If point A is at (8,2) and you translate it left 5 units, what would the point at A' be?
(3,2)
300
If your pre-image figure is in Quadrant I and you reflect it across the x-axis, what quadrant would your image be in?
Quadrant IV or Quadrant 4
300
How should you turn your paper to perform a 90 degree counterclockwise rotation?
1 turn to right
300
What changes in a translation: shape, size, location, or orientation?
Only the Location, the shape stays congruent
300
What is the one thing you need to know to perform a reflection?
What line to reflect over (x axis or y axis)
400
If point J is at (10, 4) and you translate it left 5 units & up 6 units, what would the point at J' be?
(5, 10)
400
If point K is located at (-2,-4) and it is reflected across the y-axis, what point would K' have?
(2, -4)
400
If you have point G at (-3,2) and you rotate it 270 degrees counterclockwise, what would the point G' be?
(2,3)
400
What is the line of reflection?
It is the line that a figure or point is being reflected over.
400
If you had point (x,y) and you were asked to rotate it clockwise 90 degrees, what would your new point be?
(y,-x)
500
If point W is at (2,0) and first you translate it right 7 units & up 3 units. What would the point at W' be?
(9,3)
500
What axis is this triangle reflected over?
Y-Axis
500
If you have point Q at (1,-4) and it is translated left 3 units & up 5 units then it is reflected across the y-axis and finally rotated 180 degrees, what point would Q' be?
(-2,-1)
500
What is a transformation AND what are the 3 examples of transformations we have learned so far?
A transformation is changing the pre-image to an image by sliding, flipping, or turning a figure. - The 3 transformations we have learned so far are: Translation, Reflection, Rotation
500
If you want to rotate 270 degrees counterclockwise, how many times do you turn your paper (and in what direction?)
Turn your paper 3 times to the right.