Reflections Lesson

Reflections Lesson

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.

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

See how the image is reflected in the example.

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You have completed this lesson!

Multiple Choice

Where will A' be at, if triangle ABC is reflected by
(x,y) --> (-x,y)?

• (2,1)
• (1,-2)
• (-1,2)

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

Is the picture being reflected in the y-axis or x-axis?

• y-axis
• x-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

Multiple Choice

What is a reflection?

• When you turn an object around a point.
• When you slide an object form one place to another.
• When you flip or mirror an object across a line.
• When you resize an object.