Transformations Review

Front

What is a transformation in geometry?

Back

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

Front

What are the four main types of transformations?

Back

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

Front

What does it mean to translate a figure?

Back

To translate a figure means to slide it from one position to another without changing its shape or orientation.

Front

What is a rotation?

Back

A rotation is a transformation that turns a figure around a fixed point called the center of rotation.

Front

What is a reflection?

Back

A reflection is a transformation that flips a figure over a line, creating a mirror image.

Front

What is dilation in geometry?

Back

Dilation is a transformation that changes the size of a figure by a scale factor, either enlarging or reducing it.

Front

What is the scale factor in dilation?

Back

The scale factor is a number that describes how much a figure is enlarged or reduced during a dilation.

Front

How do you perform a reflection over the x-axis?

Back

To reflect a point over the x-axis, you keep the x-coordinate the same and change the sign of the y-coordinate.

Front

How do you perform a reflection over the y-axis?

Back

To reflect a point over the y-axis, you keep the y-coordinate the same and change the sign of the x-coordinate.

Front

What is the difference between rotation and reflection?

Back

Rotation turns a figure around a point, while reflection flips a figure over a line.