This is a short quiz over what you have learned over scale factor and dilations. Although this is an online quiz, be sure to turn your shown work on a separate sheet of paper.
Gwen had a painting that had a length of 5 feet and a width of 3.5 feet. If a reproduced copy of that painting had a scale factor of 3.5,what are the new dimensions ?
A.
15 feet by 12.25 feet
B.
17.5 feet by 12.25 feet
C.
17.5 feet by 15 feet
D.
17.5 feet by 12 feet
2.
Under a dilation, triangle A(-1,1), B(-4,3), C(-3,4) becomes triangle M(-3/4,3/4), N(-3, 2 1/4), Q(-2 1/4,3). What is the scale factor for this dilation?
A.
1/4
B.
1/2
C.
3/4
D.
3
3.
A figure dilated by a scale factor of .75 would be considered an enlargement.
A.
True
B.
False
4.
If a quadrilateral was reduced to 66 2/3%. What was the scale factor?
A.
2/3
B.
1/3
C.
3
D.
2
5.
If the rectangle is dilated with a scale factor of 2.75. What are the coordinates of point C?
A.
(5,5)
B.
(10,10)
C.
(13,13)
D.
(13.75, 13.75)
6.
The ratio of the dilated image to the original image is the __________________?
7.
If the scale factor is between 0 and 1, the image is a(n)___________________.