Reflection Geometry Flashcard

Front

What is reflection in geometry?

Back

Reflection is a transformation that flips a figure over a line, creating a mirror image of the original figure.

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

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

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If a point is at (x, y), what are the coordinates after reflecting over the x-axis?

Back

The new coordinates will be (x, -y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If a point is at (x, y), what are the coordinates after reflecting over the y-axis?

Back

The new coordinates will be (-x, y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What are the coordinates of point K if it is reflected over the x-axis from (5, -2)?

Back

The coordinates will be (5, 2).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What are the coordinates of point A(1, 2) after reflecting over the x-axis?

Back

The coordinates will be A'(1, -2).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the new position of a point at (-8, 3) after reflecting over the x-axis?

Back

The new position will be (-8, -3).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If a triangle has vertices A(1, 2), B(3, 2), and C(2, 4), what are the coordinates of A' after reflecting over the x-axis?

Back

The coordinates of A' will be (1, -2).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the effect of reflecting a shape over the y-axis?

Back

The x-coordinates of the points on the shape will change, but the y-coordinates will remain the same.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5