Reflections

True or False: When a point is reflected across a mirror line, it remains the same distance from that line.

• true
• false

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

True or false: When a shape is reflected it changes size

• True

• False

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Look at the graph. Which shape is the pre-image?

• triangle GIH

• triangle G'I'H'

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What would be the coordinates of point K if it was reflected over the x-axis?

• (-5, -2)

• (-5, 2)

• (5, -2)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the Algebraic Notation for this Reflection?

• (x, y) → (y, x)
• (x, y) → (-x, y)
• (x, y) → (-y, -x)
• (x, y) → (x, -y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Identify the coordinates of the image with a REFLECTION over the y-axis.

A' ​ (a)  

B'​ (b)  

C'​ (c)  

D'​ (d)  

​

• (6,6)
• (3,6)
• (8,3)
• (5,3)
• (-3,5)
• (-6,6)
• (3,8)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Organize these options into the right categories. What could the coordinates be if they were reflected on each axis.

Groups:

(a) x-axis

,

(b) y-axis

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Triangle ABC was reflected over the y-axis. Identify the coordinates of the image.

A'​ (a)  

B'​ (b)  

C'​ (c)  

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Plot the points for PQRS on the graph.

P(-3,4), Q(-2,9), R(-9,3), S(-7,8).

Then reflect those points over the y-axis.

(keep pre-image and image on the coordinate plane)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

The x-axis runs (a)  

Tags

CCSS.5.G.A.1