Review Chapter 9

State the line of reflection.

• Reflection across y-axis
• Reflection across x-axis
• Reflection across x = 1
• Reflection across y = 1

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which axis or axes does (x, -y) and (x, y) reflect over on the coordinate plane?

• y-axis

• x-axis

• x and y-axes

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

If you reflect point B ( -2, 5) over the y-axis, what is the reflected point?

• B' ( 2, 5)

• B' ( -2, -5)

• B' ( 2, -5)

• B' ( -2, 5)

Tags

CCSS.6.NS.C.6B

If you reflect point C ( -1, -4) over the x-axis, what is the reflected point?

• C' ( -1, 4)

• C' ( 1, 4)

• C' ( 1, -4)

• C' ( -1, -4)

Tags

CCSS.6.NS.C.6B

How many lines of symmetry does this shape have?

• 2
• 4
• 6
• 8

Tags

CCSS.4.G.A.3

How many lines of symmetry are there on a regular octagon?

• 8

• 9

• 10

• 12

Tags

CCSS.4.G.A.3

How many lines of symmetry are there on a regular decagon?

• 8

• 9

• 10

• 12

Tags

CCSS.4.G.A.3

The coordinates of triangle JRB are ,J(1, -2) , R(-3, 6) and B(4, 5) . What are the coordinates of the vertices of its image after the transformation T_{2, -1} (translation x+2, y-1) then reflect over the y-axis?

• (3, 1), (-1, -7), (6, -6)

• (3, -3), (-1, 5), (6, 4)

• (-3, -3), (1, 5), (-6, 4)

• (-1, -2), (3, 6), (-4, 5)

Tags

CCSS.8.G.A.3

A double reflection over two parallel line results in a ____________.

• Reflection

• Translation

• Rotation

• Dilation

Tags

CCSS.8.G.A.3

Two parallel lines are 7 units apart. If you reflect a figure over both lines how far apart will the pre-image and final image be?

• 7 units

• 14 units

• 4 units

• 2 units

Tags

CCSS.8.G.A.3