Review of Four Transformations -Math 8

Front

What are translations in geometry?

Back

Translations are transformations that slide a figure from one position to another without changing its size, shape, or orientation. They are always congruent.

Front

What is the rule for the translation of a point (x, y) to (x + 2, y - 1)?

Back

The rule for this translation is (x + 2, y - 1).

Front

What is the original figure before a transformation called?

Back

The original figure is called the Pre-image.

Front

What is the result of a transformation called?

Back

The result of a transformation is called the Image.

Front

Identify the transformation: A triangle is moved 3 units to the right and 2 units up. What type of transformation is this?

Back

This is a Translation.

Front

What quadrant is the point (3, -4) located in?

Back

The point (3, -4) is located in Quadrant IV.

Front

What does it mean for two figures to be congruent?

Back

Two figures are congruent if they have the same shape and size, but may be in different positions.

Front

If a figure is reflected over the x-axis, what happens to the y-coordinates of its points?

Back

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

Front

What is a rotation in geometry?

Back

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

Front

What is the effect of a dilation on a figure?

Back

A dilation changes the size of a figure but keeps its shape the same.