Transformations

Front

What is a transformation in geometry?

Back

A transformation is a change in the position, size, or shape of a figure.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What are the four main types of transformations?

Back

The four main types of transformations are translation, rotation, reflection, and dilation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What happens to a point when it is reflected over the y-axis?

Back

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If point A(3, 4) is reflected over the x-axis, what is the new point?

Back

A'(3, -4) is the new point after reflection over the x-axis.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What does a positive integer indicate in a translation?

Back

A positive integer indicates a movement upwards or to the right.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What does a negative integer indicate in a translation?

Back

A negative integer indicates a movement downwards or to the left.

Tags

CCSS.6.NS.C.6A

Front

What is the angle of rotation for a 90° counterclockwise rotation?

Back

The angle of rotation is 90°.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you perform a translation of a point?

Back

To translate a point, you add the translation vector to the coordinates of the point.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the result of rotating a point 180° about the origin?

Back

The coordinates of the point change signs: (x, y) becomes (-x, -y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a dilation in geometry?

Back

A dilation is a transformation that changes the size of a figure but not its shape.

Tags

CCSS.8.G.A.3