Vocabulary
Cartesian Plane
Translations
Reflections
Rotations
100
What is a pre-image?
The original image
100
What is the point called where the x-axis and y-axis intersect and what are the coordinates of this point?
The origin. (0,0)
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
200
What is a transformation?
an operation that changes a figure or shape on a Cartesian (coordinate) Plane
200
Which quadrant is located in the bottom right of the cartesian plane?
Quadrant 4
200
What are the negative directions you can slide a figure for a translation?
Down & Left
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
Describe the following rotation in two ways:
90o CCW rotation or 270o CW rotation.
300
What is the axis of reflection or mirror line?
The line that a figure is being reflected over.
300
Which quadrant would the point (-3,5) be located in?
Quadrant 2
300
If point J is at (3,-4) and you translate it left 5 units & up 7 units, what would the coordinates of J' be?
(-2,3)
300
What type of reflection is shown?
A vertical reflection across the x-axis.
300
If your pre-image is located in quadrant III and it is rotated 180 degrees, what quadrant would your image be located in?
Quadrant I
400
What is the centre of rotation?
It is the point the figure is being rotated around.
400
What are the coordinates of point D?
(6,-3)
400
Point W is at (-5,0). Then a translation of 7 units right & 3 units up is applied. Finally it is translated left 2 units & down 3 units. What are the coordinates of the final image point?
(0,0) or the origin
400
If point A is located at (5,6) and it is reflected across the x-axis, what would the coordinates of point A' be?
(5,-6)
400
If your pre-image is located in quadrant II and you rotate it counter clockwise 90 degrees, what quadrant would your image be located in?
Quadrant III
500
What does congruent mean and which types of transformations produce congruent images?
Congruent means the same size and shape. Congruent shapes have the same side lengths and same angles. Congruent images are produced by translations, reflections and rotations.
500
Describe the location of point C relative to the origin.
Point C is 2 units left and 4 units down from the origin.
500
A translation moved point A(-5,4) to point A’(8,-2). What translation vector occurred?
[13,-6]
500
If point K is located at (-2,-4) and it is reflected across the y-axis and then reflected across the x-axis, what the final image point's coordinates be?
(2,4)
500
If your preimage is located in quadrant 4, rotated 270 degrees CCW and then 180 degrees, which quadrant will it be located in?
Quadrant 1.