Geometry Ch.9 Review

A reflection is a transformation in which a figure is flipped over a point.

• True

• False

A composition of transformations is a combination of two or more transformations, each performed on the previous image

• True

• False

Translations, reflections and rotations are all known as ________________________.

• Geometry
• Transformations
• Congruent

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

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

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

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

Identify the transformation.

• Reflection across y-axis
• 90 Rotation counter clockwise
• Translation 5 units left, 1 unit up.
• Translation 5 units right, 1 unit down

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Name the transformation.

• Translation
• Reflection
• Rotation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Write a rule for the translation.

• (x, y)→(x -1, y + 2)

• (x, y)→(x -2, y + 1)

• (x, y)→(x +2, y - 1)

• (x, y)→(x +1, y - 2)

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

What is the image of the point (3, -4) reflected over y = x?

• (-4, -3)

• (-3, -4)

• (3, 4)

• (-4, 3)

What is the image of the point (3, -4) reflected over x = 2?

• (1, -4)

• (3, 4)

• (3, 8)

• (1, 4)