Reflection (Practice)

Name the transformation.

• Translation
• Reflection
• Rotation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the line of reflection for this set of triangles?

• y-axis

• x-axis

• y = x

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Identify the transformation.

• Reflection across y-axis

• Reflection across x-axis

• 180 Rotation

• Translation 2 units down

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is a reflection?

• When you turn an object around a point.
• When you slide an object form one place to another.
• When you flip or mirror an object across a line.
• When you resize an object.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflect the point G(2, -4) over the y-axis. Where is G'?

• (-4, 2)

• (-2, 4)

• (-2, -4)

• (2, 4)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

• (x, y) → (y, x)

• (x, y) → (-x, y)

• (x, y) → (-y, -x)

• (x, y) → (x, -y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

• (x, y) → (y, x)

• (x, y) → (-x, y)

• (x, y) → (-y, -x)

• (x, y) → (x, -y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which answer shows a reflection across the x-axis?

• d
• c
• b
• a

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflect over x-axis. Which point would be at (3, -6)

• A
• B
• C
• H

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which answer shows a reflection across the y-axis?

• a
• b
• c
• d

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5