Reflections and Translations

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.

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

Which answer shows a reflection across the x-axis?

• a
• b
• c
• d

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which answer shows a reflection across the y-axis?

• a
• c
• d
• b

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

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

• (-2, 6)
• (2, 6)
• (-6, -2)
• (6, 2)

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

Reflect Point C over the y-axis:

• (-3, 2)
• (3,2)
• (-2,3)
• (3,0)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

B(-2, -4)
Reflect over the line y = x

• (2, -4)
• (-4, 2)
• (-4, -2)
• (4, 2)

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

What point do you get if you reflect the point ( -6,1) over the line y = -x?

• (-1,-6)

• (6,-1)

• (1,6)

• (-1,6)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the rule for the following reflection? 

• Reflection across       y = 3
• Reflection across        x = −3
• Reflection across            x = 3
• Reflection across          y = −3

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

What is the rule for the following reflection? 

• Reflection across       y = −1
• Reflection across        y = 1
• Reflection across            x = −1
• Reflection across          x = 1

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What does a translation do to an image?

• Turns it 90* clockwise
• Mirrors it
• Shrinks it
• Slides it

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3