Unit 3 Final Review

Front

What is the result of rotating a point (x, y) 180° about the origin?

Back

The new coordinates will be (-x, -y).

Front

If point X is at (1, -5) and is translated 3 units left and 9 units down, what are the new coordinates?

Back

The new coordinates will be (-2, -14).

Front

What is the angle of rotational symmetry for a regular hexagon?

Back

The angle of rotational symmetry is 60°.

Front

What does it mean to reflect a shape across the x-axis?

Back

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

Front

If a shape is reflected across the y-axis, what happens to its x-coordinates?

Back

The x-coordinates of the points of the shape are multiplied by -1.

Front

What is the result of translating a point (a, b) 5 units up?

Back

The new coordinates will be (a, b + 5).

Front

What is the sequence of transformations if a shape is first reflected across the x-axis and then translated 4 units to the right?

Back

The shape is first flipped over the x-axis, then moved right by 4 units.

Front

What is the effect of rotating a point 90° counterclockwise around the origin?

Back

The new coordinates will be (-y, x).

Front

How do you determine the line of reflection for a shape?

Back

The line of reflection is the line that is equidistant from the original shape and its image.

Front

What is the result of translating a point (x, y) 2 units left and 3 units down?

Back

The new coordinates will be (x - 2, y - 3).