Exploring Reflections

What is the general rule for reflecting points in the coordinate plane?

• Reflecting a point (x, y) involves adding the coordinates together.

• The coordinates remain unchanged when reflecting a point across an axis.

• To reflect a point, you must rotate it 90 degrees around the origin.

• Reflecting a point (x, y) involves changing the sign of the relevant coordinate based on the axis of reflection.

How many lines of symmetry does this shape have?

• 0

• 1

• 2

• 4

Name the transformation.

• Translation

• Reflection

• Rotation

A square has four lines of symmetry.

• True

• False

• It depends.

Symmetrical?

• Is symmetrical

• not symmetrical

How many lines of symmetry does the butterfly have?

• 1

• 2

• 3

• 4

How many lines of symmetry does the flower have?

• 2

• 3

• 6

• 9

Does this figure have point symmetry?

• Yes

• No

What axis is the image reflected over?

• X-axis

• Y-axis

Which answer shows a reflection across the y-axis?

• a

• b

• c

• d