Translations, Reflections, and Dilations

Reflect the point (2, -4) over the y-axis.

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Identify the transformation from ABC to A'B'C'.

• Reflection across the x-axis
• Reflection across the y-axis
• 90^o clockwise rotation
• 90^o counterclockwise rotation

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

Reflections over the x-axis change the ____-__________. 

• y-coordinate
• x-coordinate
• y-axis
• x-axis 

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

A dilation is which of the following: 

• An enlargement
• A reduction
• Either an enlargement or a reduction
• Neither an enlargement or a reduction

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

The rule for reflection over the y-axis is  
(x, y) --> _

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

When you translate, (x-4,y) will move _____.

• 4 units right
• 4 units left
• 4 units up
• 4 units down

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

(x,y) --> (x+a, y+b)

• translation
• rotation
• reflection
• dilation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

(x,y) --> (x, -y)

• Reflection over the y-axis
• Reflection over the x-axis
• Translation 
• Rotation 180 ° 

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Chose the correct transformation:
(x, y) --> (x , y + 2)

• Translation 2 units up
• Translation 2 units left
• Translation 2 units down
• Translation 2 units right

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which rule describes the action of the coordinates when a figure is dilated by a scale factor of 2?

• (x, y)→(x+2, y+2)

• (x, y)→(2x, 2y)

• (x, y)→(x/2, y/2)

• (x, y)→(x-2, y-2)

Tags

CCSS.8.G.A.3