Reflections Review

What is the nickname for a reflection?

• flip

• slide

• turn

• shrink

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

True or false?

Reflections preserve congruence?

• True

• False

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

When we reflect over the y-axis, what stays the same?

• x

• y

• z

• shape

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the rule for a reflection over the x-axis?

• $\left(x,y\right)\rightarrow\left(x,-y\right)$

• $\left(x,\ y\right)\rightarrow\left(-x,\ y\right)$

• $\left(x,\ y\right)\rightarrow\left(y,\ -x\right)$

• $\left(x,\ y\right)\rightarrow\left(-y,\ x\right)$

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the rule for a reflection over the y-axis?

• $\left(x,y\right)\rightarrow\left(x,-y\right)$

• $\left(x,\ y\right)\rightarrow\left(-x,\ y\right)$

• $\left(x,\ y\right)\rightarrow\left(y,\ -x\right)$

• $\left(x,\ y\right)\rightarrow\left(-y,\ x\right)$

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the rule that describes this transformation?

• $\left(x,y\right)\rightarrow\left(x,-y\right)$

• $\left(x,\ y\right)\rightarrow\left(-x,\ y\right)$

• $\left(x,\ y\right)\rightarrow\left(y,\ -x\right)$

• $\left(x,\ y\right)\rightarrow\left(-y,\ x\right)$

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Write a rule to describe each transformation.

• reflection across y = 2

• reflection across x = 2

• (x,y)-->(x-5, y+1)

• reflection across y = 1

Tags

CCSS.HSG.CO.A.2

Write a rule to describe the transformation.

• r_x=-2

• r_y=-2

• (x,y)-->(x, y+3)

• (x,y)-->(x-3, y+6)

Tags

CCSS.HSG.CO.A.2

Which graph shows the image after the given transformation of the pre-image?

• 
• 
• 
• 

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which graph shows the image after the given transformation of the pre-image?

• 
• 
• 
• 

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5