Math 8 - Unit 7 - Transformations Review

Which answer shows a reflection across the y-axis?

• a
• b
• c
• d

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

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

• (x+8, y+4)
• (x-8, y-4)
• (x+4, y+8)
• (x-4, y-8)

Identify the transformation from ABCD to A'B'C'D'.

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

Definition: The figure before a translation has occurred. 

• Pre-image
• Image
• Translation
• Reflection

Tags

CCSS.8.G.A.1

CCSS.8.G.A.3

Definition: The figure after a translation has occurred. 

• Pre-image
• Image
• Translation
• Reflection

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

Where would A' be if you translated A 3 units to the right and 4 units down?

• (-4, 4)
• (-1, 0)
• (0, -1)

Tags

CCSS.8.G.A.1

CCSS.8.G.A.3

Write the rule for this translation:
Slide 3 up and 2 right

• (x, y)---->(x + 3, y + 2)
• (x, y)-----> (x+2, y + 3)
• (x, y)----> (x - 2, y + 3)

Tags

CCSS.8.G.A.1

CCSS.8.G.A.3

Which statement is FALSE about dilations?

• Dilations preserve size.
• Dilations preserve shape.
• Dilations preserve orientation.
• Dilations can make smaller or larger images.

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

Which statement is FALSE about reflections?

• Reflections create congruent images.
• In a reflection, the image is the same distance from the line of reflection as the pre-image.
• Reflections preserve orientation.
• Reflections preserve size.

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

Reflecting over the y-axis changes the ____-_____________. 

• x-axis
• x-coordinate
• y-coordinate
• none of the above

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3