Transformations

Front

What is a transformation in geometry?

Back

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

Front

What are the four main types of transformations?

Back

Translation, Reflection, Rotation, Dilation.

Front

Which transformation is not a rigid transformation?

Back

Dilation.

Front

What is a translation?

Back

Moving a figure by sliding it left/right or up/down.

Front

What is a reflection?

Back

Flipping a figure over a line to create a mirror image.

Front

What is a rotation?

Back

Turning a figure around a fixed point.

Front

What is a dilation?

Back

Enlarging or reducing a figure by a scale factor.

Front

If a point (2,3) is translated 4 units left and 2 units down, what are the new coordinates?

Back

(-2, 1).

Front

What does it mean to reflect a shape over the x-axis?

Back

The y-coordinates of the points of the shape are multiplied by -1.

Front

What is the effect of a 90-degree clockwise rotation on the point (x,y)?

Back

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