Reflections on the Coordinate Plane

Front

What is the reflection of a point (x, y) over the x-axis?

Back

The reflection is (x, -y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the reflection of a point (x, y) over the y-axis?

Back

The reflection is (-x, y).

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

The coordinates change to (-x, -y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the y-coordinate of the reflection of point C (0, -4) over the x-axis?

Back

The y-coordinate is 4.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What axis is used for reflection if the x-coordinates remain the same?

Back

The y-axis.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What axis is used for reflection if the y-coordinates remain the same?

Back

The x-axis.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If point D (4, -5) is reflected over the y-axis, what are the new coordinates?

Back

D'(-4, -5).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If point D (4, -5) is reflected over the x-axis, what are the new coordinates?

Back

D'(4, 5).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the effect of reflecting a point over the x-axis on its y-coordinate?

Back

The y-coordinate changes sign.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the effect of reflecting a point over the y-axis on its x-coordinate?

Back

The x-coordinate changes sign.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5