8.7.13.2nd.math.notebook
August 08, 2013
Warm­Up 8/7/13
Solve the following equations:
1. 3y = 9
2. 8 + p = 27
3. 16 = 3a ­ 5
4. Write 2/5 as a decimal and a percent. 1
8.7.13.2nd.math.notebook
August 08, 2013
Warm­up 8/8/13
Fill in the blanks.
1. The ________ is the original shape or figure BEFORE it's transformed.
2. The ________ is the new figure that is formed AFTER the transformation. 3. Another word for translation is ________.
4. When plotting a point on the coordinate plane, we start at the __________.
5. A change made to the location or shape of a figure is called _____________.
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8.7.13.2nd.math.notebook
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http://youtu.be/NKtJd1hkI9k
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8.7.13.2nd.math.notebook
August 08, 2013
http://www.thomas.k12.ga.us/olc/class.aspx?id=1687&s=434
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8.7.13.2nd.math.notebook
Vocabulary Words Unit 1 Lesson 1
1. Rotational symmetry
2. Line symmetry
3. Transformations 4. Rotations
5. Center of rotation 6. Angle of rotation
7. Reflection
8. Line of reflection
9. Translation
10. Congruent figures
11. Image
12. Pre­image
August 08, 2013
A. A transformation in which a figure is turned about a fixed point.
B. The fixed point from which a transformation is rotated.
C. A rotation of a figure 180 degrees clockwise or counterclockwise and it's center produces an image that fits exactly on the original figure.
D. A transformation in which a figure is "flipped" over an axis.
E. The axis from which a transformation is reflected.
F. Formed by rays drawn from the center of rotation through corresponding points on an original figure or image.
G. A transformation that "slides" each point of a figure the same distance in the same direction.
H. The new figure that is formed by the transformation.
I. The original figure before it is transformed. J. Divides the figure into two parts that are reflections of each other in the line.
K. A change made to the location or to the size of a figure.
L. Figures that have the same size and shape. 10
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