Vocabulary
Translation
Reflection
Rotation
Dilation
100
Define Congruent
two figures who have the same size and shape
100
What are the new coordinate pairs if the trapezoid is moved 3 units right and 2 units down
J (-3,-3) K (0,3) M (-5, 0) L (2,0)
100
Over what axis is the following figure reflected on?
The y- axis
100
How many degrees was the green rectangle rotated to reach the blue rectangle
90 degrees
100
What is the new image of G(2, 18) if the scale factor is 25?
G'(50, 450)
200
What is a reduction?
a decrease in the size of a shape
200
Z (5,2) Y (7,2) X (4,3)
3 units left and 4 units down
What are the new coordinate pairs?
Z (2, -2) Y (4, -2) X (1, -1)
200
D-none of them
200
By how many degrees was the blue triangle rotated to reach the red triangle
180
200
A dilation can produce an enlargement and a ____
Reduction
300
What is an enlargement?
an increase in the size of a shape
300
What is the rule for the following picture:
(x, y) --> (x + 2, y - 4)
300
Over what axis is the following figure reflected on?
x-axis
300
By how many degrees was the pre-image rotated to reach the image
270 degrees counterclockwise
300
Is this a dilation?
yes
400
What is the Line of Reflection?
the line where the figure is flipped across to create a reflection or mirror image of the pre-image, this is used in reflections
400
What is the rule for the following picture:
6 units left and 3 units up
(x, y) --> (x - 6, y + 3)
400
Which axis is B and C reflected on?
Y-axis then X-axis
400
By how many degrees was the pre- image rotated by
180
400
What is the scale factor?
3
500
What is the Center of Rotation?
the point where a figure is rotated, this is used in a rotation
500
Find the old coordinate pairs of:
A (1,5) B (3,2) C (7,5) D (9,2)
Before they were translated 8 units left and 5 units up
A (-7,0) B (-5, -3) C (-1,0) D (1, -3)
500
What is the line of reflection if L(1, 4) M(1, 0) N (3,0) mapped to L'(-1, 4) M'(-1, 0) N'(-3, 0)?
y-axis
500
What set of transformations is performed on triangle SRT
90 degree counterclockwise followed by a translation of 2 units to the left
500
What is the scale factor of the following dilation?
A(8, 2) --> A'(4, 1)
B(10, 6) --> B'(5, 3)
k = 1/2