Reflections and Translations

Front

What is a reflection?

Back

When you flip or mirror an object across a line.

Front

Reflect over x-axis. Which point would be at (3, -6)?

Back

A

Front

When you reflect a shape, you ______ over an axis or line.

Back

Flip

Front

What is the algebraic representation of translating a figure 4 units down?

Back

(x, y-4)

Front

What is the algebraic representation of translating a figure 3 units left and 5 units down?

Back

(x-3, y-5)

Front

What is the definition of 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 is the effect of reflecting a point (x, y) over the y-axis?

Back

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

Front

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

Back

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

Front

What is the formula for reflecting a point (x, y) over the line y = x?

Back

The new point will be (y, x).

Front

If a triangle has vertices at (1, 2), (3, 4), and (5, 6), what are the coordinates after reflecting over the y-axis?

Back

(-1, 2), (-3, 4), (-5, 6)