Understanding Reflections in Geometry

State the line of reflection.

• Reflection across y-axis

• Reflection across x-axis

• Reflection across x = 1

• Reflection across y = 1

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Where is the line of reflection?

• x=-2

• x=2

• y=2

• y=-2

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

You want to reflect a figure over the horizontal line shown. 
What directions would you give? 
Reflect over the line: ________

• x = -4

• y = -4

• x - y = 4

• None of these

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Identify line of reflection

• y axis

• x = -4

• y = -4

• y = -x

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Triangle GHI is reflected across the x-axis.  What are the coordinates of I'?

• (-2, 6)

• (2, 6)

• (-6, -2)

• (6, 2)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the rule for the following reflection? 

• Reflection across      x-axis

• Reflection across        y-axis

• Reflection across            y = x

• Reflection across          y = −x

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Figure ABC was ​ (a)   about the ​ (b)   .

• reflected
• y-axis
• translated
• x-axis
• rotated

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5