Dilations
What happens to a figure when it is dilated by a scale factor greater than 1?
It enlarges, and gets further away from the center point.
Name all three types of Rigid Motions.
Translation, Rotation, and Reflection
x + 5= 12
7
2x+3= 11
4
What is Ms. Howard's favorite subject?
Math! Of Course!!!!
What happens to a figure when it is dilated by a scale factor between 0 and 1?
It reduces, and gets closer to the center point.
What does the word "rigid" mean?
The shape stays the same size.
x- 8=3
11
5x-7=8
3
What state is Ms. Howard from?
Charlotte, NC
A triangle is dilated by a scale factor of 3. If one side was 4 cm, what is the new side length?
12 CM
A figure has been rotated 180 degrees. The point (x, y) now becomes what?
-x, -y
6x=42
7
x/3 + 2 = 6
12
What is Ms. Howard's favorite color?
Purple
True or False: A dilations always preserves the angle measures
True
A triangle is reflected over the x-axis. If one vertex is (2, 3), what are the new coordinates?
(2, -3)
x/4= 9
36
4x - 9= 3
3
Mexican Food (Tacos)
A square has a side length of 18 and it has been dilated. The new side length for the square is 12. What scale factor was used to complete the dilation?
2/3- Reduction
Reflecting an image over the x-axis and over the y-axis, is the same as what other rigid motion?
180 degree rotation
-5x=25
-5
-2x+5 = 17
-6
How many years have Ms. Howard taught?
8 years