Transformations Flashcard

Front

What is a reflection in geometry?

Back

A reflection is flipping 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 across the x-axis?

Back

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If point N(6, -5) is reflected across the x-axis, what are the coordinates of the image?

Back

(6, 5)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What are the three types of transformations in geometry?

Back

Transformations include translations, rotations, and reflections.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a translation in geometry?

Back

A translation is sliding a figure in a straight line without changing its shape or orientation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a rotation in geometry?

Back

A rotation is turning a figure around a fixed point at a certain angle.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If triangle GHI has vertices G(1, 2), H(3, 4), and I(4, 2), what are the coordinates of H' after reflecting across the x-axis?

Back

(3, -4)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the effect of reflecting a point across 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 definition of a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape to create a new shape.

Tags

CCSS.HSG.CO.A.2

Front

If a figure is rotated 90 degrees clockwise, how do the coordinates of a point (x, y) change?

Back

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5