Transformations Rules

Front

What happens to the coordinates of a point when it is rotated 180° about the origin?

Back

The coordinates (x, y) become (-x, -y).

Front

What is the algebraic notation for a dilation with a scale factor of 3?

Back

(x, y) goes to (3x, 3y).

Front

How do the coordinates of a point change when it is reflected across the x-axis?

Back

The coordinates (x, y) become (x, -y).

Front

What is a dilation in geometry?

Back

A transformation that alters the size of a figure, either enlarging or reducing it.

Front

If point N(6, -5) is reflected across the x-axis, what are the new coordinates?

Back

(6, 5).

Front

What is the effect of a scale factor less than 1 in a dilation?

Back

It results in a reduction of the figure.

Front

What is the effect of a scale factor greater than 1 in a dilation?

Back

It results in an enlargement of the figure.

Front

If point B(4, 3) is dilated by a scale factor of 3, what are the new coordinates?

Back

(12, 9).

Front

What is the result of rotating a point 90° counterclockwise about the origin?

Back

The coordinates (x, y) become (-y, x).

Front

What is the result of rotating a point 270° counterclockwise about the origin?

Back

The coordinates (x, y) become (y, -x).