Unit 2 Review

Front

What is the result of rotating point A (2, 5) by 180 degrees?

Back

A' is at (-2, -5).

Front

What does the transformation T_{<-2,3>}(4,5) result in?

Back

The result is (2, 8).

Front

What are the new coordinates of point A (8, -6) after a 270° rotation about the origin?

Back

The new coordinates are (-6, -8).

Front

What are the new coordinates of point Q (-8, -6) after reflecting across the y-axis?

Back

The new coordinates are (8, -6).

Front

What is the result of reflecting point D (-2, 5) over the x-axis?

Back

D' is at (-2, -5).

Front

What is a rotation in geometry?

Back

A rotation is a circular movement of a point around a center.

Front

What does it mean to reflect a point across an axis?

Back

To reflect a point means to create a mirror image of the point across a specified axis.

Front

What is the coordinate of a point after a 180° rotation about the origin?

Back

The coordinates change from (x, y) to (-x, -y).

Front

How do you find the coordinates after a 90° rotation counterclockwise?

Back

The coordinates change from (x, y) to (-y, x).

Front

How do you find the coordinates after a 270° rotation counterclockwise?

Back

The coordinates change from (x, y) to (y, -x).