12.16.24 8 Reflections

Front

What is the rule for reflecting a point (X,Y) across the x-axis?

Back

(X,Y) -> (X, -Y)

Front

What is the rule for reflecting a point (X,Y) across the y-axis?

Back

(X,Y) -> (-X, Y)

Front

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

Back

The y-coordinate changes sign.

Front

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

Back

The x-coordinate changes sign.

Front

What is a reflection in geometry?

Back

When you flip or mirror an object across a line.

Front

If point K is at (1, -4), what is K' after reflection across the x-axis?

Back

(1, 4)

Front

If point A is at (3, 6), what is A' after reflection across the x-axis?

Back

(3, -6)

Front

What is the line of reflection when reflecting across the x-axis?

Back

The x-axis.

Front

What is the line of reflection when reflecting across the y-axis?

Back

The y-axis.

Front

If a point is reflected across the line y = 1, how does its y-coordinate change?

Back

It is transformed to 2 - y.