Nessa O'brien
New member
1. A preimage and image are congruent in a reflection.
a. Always
b. Sometimes
c. Never
2. Describe the translation in words: (x, y)-->(x - 4, y - 9)
a. 4 units to the left, 9 units down
b. 4 units to the left, 9 units up
c. 4 units to the right, 9 units down
d. 4 units to the right, 9 units up
3. Describe the translation as an ordered pair: 3 units to the left, 7 units down.
a. (x, y)-->(x + 3, y – 7)
b. (x, y)-->(x – 3, y – 7)
c. (x, y)-->(x + 3, y + 7)
d. (x, y)-->(x – 3, y + 7)
4. If a translation is defined by (x, y)-->(x + 2, y - 3), what is the image of the preimage point
(-3, 5)?
a. (-5, 8)
b. (-5, 2)
c. (-1, 2)
d. (-1, 8)
5. State the segment that represents a 90° clockwise rotation of FG about P.
http://i190.photobucket.com/albums/z246/dropdeadnessa/Math%20Homework/9.gif
a. EF
b. FG
c. HA
d. HG
.
a. Always
b. Sometimes
c. Never
2. Describe the translation in words: (x, y)-->(x - 4, y - 9)
a. 4 units to the left, 9 units down
b. 4 units to the left, 9 units up
c. 4 units to the right, 9 units down
d. 4 units to the right, 9 units up
3. Describe the translation as an ordered pair: 3 units to the left, 7 units down.
a. (x, y)-->(x + 3, y – 7)
b. (x, y)-->(x – 3, y – 7)
c. (x, y)-->(x + 3, y + 7)
d. (x, y)-->(x – 3, y + 7)
4. If a translation is defined by (x, y)-->(x + 2, y - 3), what is the image of the preimage point
(-3, 5)?
a. (-5, 8)
b. (-5, 2)
c. (-1, 2)
d. (-1, 8)
5. State the segment that represents a 90° clockwise rotation of FG about P.
http://i190.photobucket.com/albums/z246/dropdeadnessa/Math%20Homework/9.gif
a. EF
b. FG
c. HA
d. HG
.