Module 2 Lesson 8--Reflections

Module 2 Lesson 8--Reflections

​I can perform reflection over the x and y axes.

​

​I can describe reflections over the x and y axes

​

​I can identify reflections over the x and y axes

Multiple Choice

• a

• b

• c

• d

Multiple Choice

• a

• b

• c

• d

Multiple Choice

Which letter matches the coordinate (4, -6)?

• G
• Z
• K
• None of the above

Multiple Choice

Name the quadrant where POINT C is located. 

• Quadrant I
• Quadrant II
• Quadrant III
• No Quadrant

Multiple Choice

Which quadrant contains the point named by (2, 5)?

• Quadrant I
• Quadrant II
• Quadrant III
• Quadrant IV

Reflections

• A reflection is a transformation that is a flip.

• A point or figure is reflected in a line called the line of reflection.

• A reflection is a mirror image of the preimage.

• Each point in the image and preimage is the same distance from the line of reflection.

• The image has the same shape and size as the preimage.

​we only reflect across axes in 8th grade

Reflect the image acros the x-axis and y-axis

See how the image is reflected in the example.

​Use. Page 56 to complete the following:

• Reflect the triangle ABC across the x-axis. Don't forget to label!​

​Use. Page 56 to complete the following:

• Reflect triangle A'B'C' over the y-axis.

Multiple Select

• angle measures

• side lengths

• area

• orientation

• location

Multiple Choice

Reflect over x-axis. Which point would be at (3, -6)

• A
• B
• C
• H

Multiple Choice

Reflect Point C over the y-axis:

• (-3, 2)
• (3,2)
• (-2,3)
• (3,0)

Multiple Choice

Find K' if the figure is reflected across the x-axis

• (4, 1))
• (-1, -4)
• (1, -4)
• (1, 4)

Multiple Choice

If the dotted figure is the image, the original figure was reflected over the ...

• x-axis
• y-axis

Multiple Choice

Which answer shows a reflection across the x-axis?

• d
• c
• b
• a

Multiple Choice

Which answer shows a reflection across the y-axis?

• a
• b
• c
• d