Geometry Unit 2 Transformations 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

What is the rule for translating a point (x, y) by 2 units to the right and 1 unit down?

Back

(x + 2, y - 1)

Front

How do you reflect a point (x, y) over the x-axis?

Back

The reflection of (x, y) over the x-axis is (x, -y).

Front

What is dilation in geometry?

Back

Dilation is a transformation that changes the size of a figure but not its shape, using a scale factor.

Front

If a figure is dilated with a scale factor of 2, what happens to its area?

Back

The area of the figure becomes four times larger.

Front

What does the notation (x, y + 6) indicate in a translation?

Back

It indicates that the point (x, y) is moved 6 units up.

Front

What is the result of reflecting the point (3, 5) over the x-axis?

Back

(3, -5)

Front

What is the effect of a translation (x - 1, y + 2) on the point (4, 3)?

Back

The new point will be (3, 5).

Front

What transformation results in a figure that is similar to the original but larger?

Back

Dilation with a scale factor greater than 1.

Front

What is the rule for translating a point (x, y) by 1 unit to the left and 2 units up?

Back

(x - 1, y + 2)