transformations

(x, y) -------> (x, -y) is a reflection over the x axis.       

• True
• False

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

(x,y) -------> (-x, -y) is a reflection over the y = x axis.

• True 
• False

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

(x, y) -------> (x - 3, y) is a translation of 3 units to the left.   

• True
• False

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

(x, y) -------> (x, y - 2) is a translation of 2 units up.  

• True
• False

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which transformation changes the orientation of the shape?

• Translation
• Reflection
• Rotation
• Dilation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

C(-6, 2) and B(-1, -1)
Reflect over the line y = x

• C' (-6, 2), B' (-1, -1)
• C' (6, 2), B' (1, -1)
• C' (2, -6), B' (-1, -1)
• C' (-6, -2), B' (-1, -1)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

C(-6, 2) and B(-1, -1)
Rotate 90 degrees counterclockwise.

• C' (-6, 2), B' (-1, -1)
• C' (6, 2), B' (1, -1)
• C' (2, -6), B' (-1, -1)
• C' (-2, -6), B' (1, -1)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

A(-2, 2) and B(3, 2)
Rotate 180 degrees 

• A' (-2, 2), B' (3, 2)
• A' (-2, -2), B' (-3, -2)
• A' (2, -2), B' (-3, -2)
• A' (2, -2), B' (2, 3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

A(-2, 2) and B(3, 2) 
Dilate k = 2 

• A' (-2, 2), B' (3, 2)
• A' (-4, 4), B' (6, 4)
• A' (2, -2), B' (-3, -2)
• A' (2, -2), B' (2, 3)

Tags

CCSS.8.G.A.3

A(-2, 2) and B(3, 2) 
Dilate k = 1 

• A' (-2, 2), B' (3, 2)
• A' (-4, 4), B' (6, 4)
• A' (2, -2), B' (-3, -2)
• A' (2, -2), B' (2, 3)

Tags

CCSS.HSG.CO.A.2