Translations & Reflections

Front

What is a translation in geometry?

Back

A translation is a transformation that moves every point of a figure the same distance in the same direction.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you translate a point (x, y) to the right by 3 units?

Back

(x + 3, y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you translate a point (x, y) down by 4 units?

Back

(x, y - 4)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What happens to the coordinates of a point when it is translated 5 units up?

Back

The y-coordinate increases by 5.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If triangle A is at (2, 3) and is translated 4 units left and 2 units down, where is triangle A' located?

Back

(2 - 4, 3 - 2) = (-2, 1)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the effect of a translation on the size and shape of a figure?

Back

A translation does not change the size or shape of a figure; it only changes its position.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a reflection in geometry?

Back

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If a point (x, y) is reflected over the x-axis, what are the new coordinates?

Back

(x, -y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If a point (x, y) is reflected over the y-axis, what are the new coordinates?

Back

(-x, y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the line of reflection?

Back

The line of reflection is the line over which a figure is flipped to create a mirror image.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5