Reflection Practice 1

Front

What happens to the x-coordinate of a point when it reflects over the x-axis?

Back

The x-coordinate stays the same.

Front

What happens to the y-coordinate of a point when it reflects over the y-axis?

Back

The y-coordinate stays the same.

Front

What is the rule for reflecting a point across the line x = 3?

Back

The rule is to subtract 3 from the x-coordinate and then reflect.

Front

Reflect the point (3, 4) over the x-axis. What is the coordinate of its image?

Back

(3, -4)

Front

What is the rule for a reflection over the y-axis?

Back

(x,y)→(-x,y)

Front

If a point (a, b) reflects over the x-axis, what is the new coordinate?

Back

(a, -b)

Front

If a point (a, b) reflects over the y-axis, what is the new coordinate?

Back

(-a, b)

Front

What is the reflection of the point (-2, 5) over the y-axis?

Back

(2, 5)

Front

What is the reflection of the point (4, -3) over the x-axis?

Back

(4, 3)

Front

What is the general rule for reflecting a point across the line y = k?

Back

(x, y) → (x, 2k - y) where k is the y-coordinate of the line.