Translation/Reflection

Front

What is the transformation from ABC to A'B'C' if it is a reflection across the x-axis?

Back

The coordinates of the reflected points will have their y-values changed in sign.

Front

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

Back

The x-values of the points are changed in sign, while the y-values remain the same.

Front

When a point is reflected over the x-axis, what happens to its coordinates?

Back

Keep the x-value, change the y-value.

Front

What is the original figure prior to a transformation called?

Back

Pre-image.

Front

If Triangle XYZ is reflected across the x-axis and X = (-11,8), what are the coordinates of X'?

Back

X' = (-11,-8).

Front

What is the transformation that flips a figure over a line called?

Back

Reflection.

Front

What is the transformation that turns a figure around a fixed point called?

Back

Rotation.

Front

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

Back

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

Front

What is the image of a figure after a transformation called?

Back

Image.

Front

If a point (3, -4) is reflected across the x-axis, what are the new coordinates?

Back

(3, 4).