Translations and Reflections

Front

What is a translation in geometry?

Back

A transformation that moves every point of a shape the same distance in a specified direction.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you reflect a point over the y-axis?

Back

Change the sign of the x-coordinate of the point.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the arrow notation for a translation 5 units right and 3 units down?

Back

(x, y) --> (x + 5, y - 3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What does the term 'reflection' mean in geometry?

Back

A transformation that flips a shape over a line, creating a mirror image.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If Point A (2, 3) is reflected over the x-axis, where does it end up?

Back

A' (2, -3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the result of reflecting Point B (-4, 1) over the y-axis?

Back

B' (4, 1)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

Describe the transformation: (x, y) --> (x - 2, y + 4).

Back

Translation: slide 2 left, 4 up.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the arrow notation for a reflection over the x-axis?

Back

(x, y) --> (x, -y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If Point C (1, -2) is translated 3 units left and 2 units up, where does it end up?

Back

C' (-2, 0)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the difference between translation and reflection?

Back

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5