Distance and Reflections

Front

What is the reflection of a point (x, y) over the x-axis?

Back

The reflected point is (x, -y).

Front

What is the reflection of a point (x, y) over the y-axis?

Back

The reflected point is (-x, y).

Front

How do you calculate the distance between two points on a number line?

Back

Distance = |x2 - x1|, where x1 and x2 are the two points.

Front

Reflect the point C (-1, -4) over the x-axis.

Back

C' (-1, 4).

Front

Reflect the point (5, 12) over the y-axis.

Back

(-5, 12).

Front

What is the distance between -2 and 6 on a number line?

Back

8.

Front

Reflect the point B (-2, 5) over the y-axis.

Back

B' (2, 5).

Front

Reflect the point (3, -6) over the y-axis.

Back

(-3, -6).

Front

What happens to the y-coordinate of a point when it is reflected over the x-axis?

Back

The y-coordinate changes sign.

Front

What happens to the x-coordinate of a point when it is reflected over the y-axis?

Back

The x-coordinate changes sign.