Translations and Reflections Review

Front

What is a reflection in geometry?

Back

A reflection is a transformation that flips a figure over a line, creating a mirror image.

Front

What is the result of reflecting the point (6, -3) over the x-axis?

Back

(6, 3)

Front

What is the algebraic notation for reflecting a point over the x-axis?

Back

(x, y) → (x, -y)

Front

In an ordered pair (x, y), which letter represents the first number?

Back

X

Front

How do you translate triangle A'B'C' to triangle ABC if the translation is (x+2, y-9)?

Back

You move each point of triangle A'B'C' 2 units to the right and 9 units down.

Front

What is the difference between translation and reflection?

Back

Translation moves a figure without changing its orientation, while reflection flips it over a line.

Front

What is the effect of reflecting a point over the y-axis?

Back

The x-coordinate changes sign, resulting in (x, y) → (-x, y).

Front

If a point is reflected over the line y = x, what happens to its coordinates?

Back

The coordinates swap places: (x, y) → (y, x).

Front

What is the transformation that moves a figure without changing its size or shape?

Back

Translation.

Front

What is the algebraic notation for reflecting a point over the y-axis?

Back

(x, y) → (-x, y)