Reflections across the x and y axis

Front

What is a reflection in geometry?

Back

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

Back

When a point (x, y) is reflected over the x-axis, its coordinates change to (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 the y-axis?

Back

When a point (x, y) is reflected over the y-axis, its coordinates change to (-x, y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If point A (2, 3) is reflected over the x-axis, what are the coordinates of A'?

Back

A' = (2, -3).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If point B (-4, -5) is reflected over the y-axis, what are the coordinates of B'?

Back

B' = (4, -5).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the image of the point (0, 5) when reflected over the x-axis?

Back

The image is (0, -5).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the image of the point (3, 0) when reflected over the y-axis?

Back

The image is (-3, 0).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If point C (-5, 4) is reflected over the x-axis, what are the coordinates of C'?

Back

C' = (-5, -4).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the reflection of the point (1, 2) over the y-axis?

Back

The reflection is (-1, 2).

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 is (-3, 4).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5