Unit 11 - 11.1 - Translations and Reflections

Front

What is a reflection?

Back

When you flip or mirror an object across a line.

Front

Which answer shows a reflection across the x-axis?

Back

c

Front

Translate the blue shape to the green shape: 3 Left, 3 Down.

Back

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

Front

Reflect Point C over the y-axis: What is the new coordinate?

Back

(-3, 2)

Front

What is the correct notation of a figure that is Translated 6 units right and 5 units up?

Back

(x, y) --> (x + 6, y + 5)

Front

What is a translation in geometry?

Back

A translation is a slide of a figure from one position to another without turning it.

Front

What does it mean to reflect a shape over the y-axis?

Back

To reflect a shape over the y-axis, you flip it across the vertical line (y-axis), changing the sign of the x-coordinate.

Front

If Point A is at (2, 3), what is its reflection over the x-axis?

Back

(2, -3)

Front

What is the effect of translating a shape 4 units left?

Back

The x-coordinate of each point of the shape decreases by 4.

Front

What is the effect of reflecting a shape over the line y = x?

Back

The x and y coordinates of each point are swapped.