1.
A dilation with center
C
and a scale factor
k
maps
A
onto
D
and
B
onto
E
. If
AB
= 4 and
DE
= 10, find |
k
|.
A.
6
B.
C.
D.
Hint
2.
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
3.
A dilation with center
C
and a scale factor of k maps L to
M
and
P
to
Q
. If
LP
= 12 and
MQ
= 10, find |
k
|.
A.
-2
B.
C.
D.
Hint
4.
A dilation with center
C
produced quadrilateral
RSTV
. What is the scale factor?
A.
12
B.
2
C.
D.
9
Hint
5.
Which statement is true about dilations?
A.
Dilations form similar images.
B.
Dilations form congruent images.
C.
Dilations are the combination of two reflections.
D.
Dilations are isometries.
Hint