Reflections on the Coordinate Plane

Front

What is a reflection in geometry?

Back

A reflection is a transformation that flips a figure over a line, creating a mirror image.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What are the two axes on the coordinate plane?

Back

The x-axis (horizontal) and the y-axis (vertical).

Tags

CCSS.5.G.A.1

Front

What happens to the coordinates of a point when it is reflected over the x-axis?

Back

The y-coordinate changes sign, while the x-coordinate remains the same.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What happens to the coordinates of a point when it is reflected over the y-axis?

Back

The x-coordinate changes sign, while the y-coordinate remains the same.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What happens to the coordinates of a point when it is reflected over both axes?

Back

Both the x-coordinate and y-coordinate change signs.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If point A is at (2, 3), what is its reflection over the x-axis?

Back

A' is at (2, -3).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If point B is at (-4, 5), what is its reflection over the y-axis?

Back

B' is at (4, 5).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If point C is at (1, -2), what is its reflection over both axes?

Back

C' is at (-1, 2).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the reflection of point D (4, 3) over the y-axis?

Back

D' is at (-4, 3).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the reflection of point E (-3, -7) over the x-axis?

Back

E' is at (-3, 7).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5