Topic 3: Transformations II

Front

If point H(–6, 2) is translated 3 units right and 4 units up, what are the coordinates of the translated image?

Back

(-3, 6)

Front

To slide or move a figure is called what?

Back

Translation

Front

The vertices of triangle GHI are G(1, 2), H(3, 4), and I(4, 2). What are the coordinates of the image point H′ after reflecting across the x-axis?

Back

(3, -4)

Front

If you rotate point A(–5, 5) 180° about the origin, what are the coordinates of A'?

Back

(-3, -5)

Front

Point N(6, –5) is reflected across the x-axis. What are the coordinates of the image?

Back

(6, 5)

Front

What is the definition of 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 happens to the coordinates of a point (x, y) when it is reflected across the x-axis?

Back

The coordinates become (x, -y).

Front

What happens to the coordinates of a point (x, y) when it is reflected across the y-axis?

Back

The coordinates become (-x, y).

Front

What is the result of rotating a point (x, y) 90° counterclockwise about the origin?

Back

The coordinates become (-y, x).

Front

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

Back

The coordinates become (-x, -y).