Reflection in Geometry

The line over which a figure is reflected is called:

• Axis of symmetry

• Reflection axis

• Mirror line

• Perpendicular bisector

Which of the following is NOT preserved under reflection?

• Size

• Shape

• Angle measures

• Orientation

The reflection of point (3, 4) over the y-axis is:

• (4, 3)

• (-3, 4)

• (3, -4)

• (-4, -3)

How many lines of reflection symmetry does a regular hexagon have?

• 3

• 4

• 6

• 8

Which of the following transformations is equivalent to a reflection over the y-axis followed by a reflection over the x-axis?

• Rotation by 90°

• Rotation by 180°

• Translation

• Dilation

Which of the following figures always has at least one line of reflection symmetry?

A square is reflected over its diagonal. The resulting figure is:

• A rectangle

• The same square

• A rhombus

• An isosceles triangle

Does the picture show a reflection?

• Yes

• No

What is the image of the line y = 2x + 1 when reflected over the x-axis?

• y = -2x + 1

• y = 2x - 1

• y = -2x - 1

• y = \frac{1}{2}x + 1

Which of the following letters has only one line of reflection symmetry?

• A

• H

• O

• B