Transformations Unit Review 331

Front

What is a line of symmetry?

Back

A line of symmetry is a line that divides a shape into two identical parts that are mirror images of each other.

Front

How many lines of symmetry does a shape with one line of symmetry have?

Back

1

Front

What is rotation in geometry?

Back

Rotation is a transformation that turns a shape around a fixed point, known as the center of rotation.

Front

What does a 180-degree rotation mean?

Back

A 180-degree rotation means turning a shape halfway around a circle, resulting in the shape facing the opposite direction.

Front

What is translation in geometry?

Back

Translation is a transformation that moves a shape from one location to another without changing its size, shape, or orientation.

Front

If a point (x, y) is translated by the rule (x, y) → (x - 3, y - 2), what is the new position of the point (6, 2)?

Back

(3, 0)

Front

What does the notation (x + a, y + b) represent in translation?

Back

It represents moving the point (x, y) 'a' units horizontally and 'b' units vertically.

Front

What is the magnitude of a transformation?

Back

The magnitude of a transformation refers to the size or extent of the transformation applied to a shape.

Front

If a shape is rotated 90 degrees clockwise, how does its orientation change?

Back

The shape turns to the right, changing its position relative to the original orientation.

Front

What is the effect of translating a triangle by (x - 2, y + 9)?

Back

The triangle moves 2 units left and 9 units up.