Reflection (Geometry)

Front

What is reflection in geometry?

Back

Reflection in geometry 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 is the line of reflection?

Back

The line of reflection is the line over which a figure is reflected, such as the x-axis or y-axis.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What happens to the x-coordinates when reflecting over the y-axis?

Back

The x-coordinates change sign (x becomes -x), while the y-coordinates remain the same.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What happens to the y-coordinates when reflecting over the x-axis?

Back

The y-coordinates change sign (y becomes -y), while the x-coordinates remain the same.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

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

Back

The reflection of the point (3, 4) over the x-axis is (3, -4).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the reflection of the point (-2, 5) over the y-axis?

Back

The reflection of the point (-2, 5) over the y-axis is (2, 5).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What color is the x-axis?

Back

The x-axis is typically represented in black.

Tags

CCSS.5.G.A.1

Front

What color is the y-axis?

Back

The y-axis is typically represented in black.

Tags

CCSS.5.G.A.1

Front

If a point is reflected over the line y = 1, how does its y-coordinate change?

Back

The y-coordinate is adjusted based on its distance from the line y = 1, effectively flipping it across that line.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the effect of reflecting a shape across the x-axis?

Back

The shape is flipped over the x-axis, resulting in a mirror image with respect to that axis.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5