1.
For which value is a dilation with that scale factor a congruence transformation?
A.
0
B.
1
C.
2
D.
Hint
2.
Refer to the figure below. A dilation with center
C
produced the circle in red. What is the scale factor of the dilation?
A.
1
B.
C.
2
D.
3
Hint
3.
A square is reduced by a scale factor of
. The area of the image is how many times the area of the preimage?
A.
B.
C.
4
D.
2
Hint
4.
Which statement is true about dilations?
A.
Dilations form congruent images.
B.
Dilations are isometries.
C.
Dilations form similar images.
D.
Dilations are the combination of two reflections.
Hint
5.
Pentagon
EFGHI
has vertices
E
(-9, 0),
F
(-3, 6),
G
(6, 6),
H
(6, -6), and
I
(-3, -6). Graph pentagon
EFGHI
and its dilated image
E
´
F
´
G
´
H
´
I
´ if the scale factor is
.
A.
B.
C.
D.
Hint