Geometry Unit 9 Transformations Multiple Choice Review

Front

What is a translation in geometry?

Back

A translation is a transformation that moves every point of a figure the same distance in the same direction.

Front

How do you perform a translation on coordinates?

Back

To translate a point (x, y) by (a, b), you add a to x and b to y, resulting in (x + a, y + b).

Front

What are the coordinates of A’ after the translation (x, y) → (x - 4, y + 8) for A(2, -8)?

Back

A'(-2, 0) is the result of the translation.

Front

What is symmetry in geometry?

Back

Symmetry refers to a balance or correspondence between parts of a figure, often involving reflection, rotation, or translation.

Front

How many lines of symmetry does a figure have if it can be divided into two identical halves?

Back

The number of lines of symmetry is equal to the number of ways the figure can be divided into two identical halves.

Front

What is a reflection in geometry?

Back

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

Front

What are the coordinates of D’ after a reflection in the line y = x for D(4, -7)?

Back

D'(-7, 4) is the result of the reflection.

Front

What is dilation in geometry?

Back

Dilation is a transformation that alters the size of a figure but maintains its shape.

Front

What is the difference between enlargement and reduction in dilation?

Back

Enlargement increases the size of a figure, while reduction decreases the size.

Front

What is rotational symmetry?

Back

Rotational symmetry occurs when a figure can be rotated around a central point and still look the same at certain angles.