Reflections on the Coordinate Plane

Front

What is a reflection in the coordinate plane?

Back

A reflection in the coordinate plane 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

How do you reflect a point across the y-axis?

Back

To reflect a point (x, y) across the y-axis, change the sign of the x-coordinate. The new point will be (-x, y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the reflection of the point (4, 5) over the y-axis?

Back

The reflection of (4, 5) over the y-axis is (-4, 5).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you reflect a point across the x-axis?

Back

To reflect a point (x, y) across the x-axis, change the sign of the y-coordinate. The new point will be (x, -y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the reflection of the point (3, -2) over the x-axis?

Back

The reflection of (3, -2) over the x-axis is (3, 2).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the reflection of the point (-6, -1) over the x-axis?

Back

The reflection of (-6, -1) over the x-axis is (-6, 1).

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 is the reflection of the point (1, 6) over the y-axis?

Back

The reflection of (1, 6) over the y-axis is (-1, 6).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the reflection of the point (0, 5) over the y-axis?

Back

The reflection of (0, 5) over the y-axis is (0, 5) because the point lies on the y-axis.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the reflection of the point (2, 3) over the x-axis?

Back

The reflection of (2, 3) over the x-axis is (2, -3).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5