Symmetry and Reflections

What is the correct rule for this Reflection?

• (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 axis is the triangle being reflected over?

• X-axis

• Y-axis

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Find K' if the figure is reflected across the x-axis

• (4, 1))

• (-1, -4)

• (1, -4)

• (1, 4)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

• y-coordinate

• x-coordinate

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

• A

• B

• C

• D

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

• 1

• 2

• 3

• 4

Answer explanation

Tags

CCSS.HSG.CO.A.3

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

How many lines of symmetry does this shape have?

• 0

• 1

• 2

• 4

Tags

CCSS.4.G.A.3

How many lines of symmetry does this shape have?

• 1

• 2

• 3

• 4

Tags

CCSS.4.G.A.3

Which is the correct rule if you wish to translate triangle A'B'C' to triangle ABC. *Careful here-order matters!!

• (x+2, y-5)

• (x+2, y-9)

• (x-2, y-9)

• (x-2, y+9)

Tags

CCSS.HSG.CO.A.2