Reflections, Translations, & Dilations

Front

Reflect (-2, 7) across the y-axis.

Back

(2, 7)

Front

What is the Algebraic Notation for this Reflection?

Back

(x, y) → (x, -y)

Front

How is Quadrilateral EFGH translated to E'F'G'H'?

Back

3 left, 6 down

Front

The x-axis is...

Back

horizontal

Front

A dilation is given by the transformation (x, y) → (3.5x, 3.5y). What is the scale factor?

Back

3.5

Front

What is a reflection in geometry?

Back

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

Front

What does it mean to translate a shape?

Back

To slide a shape in a straight line from one position to another without rotating or flipping it.

Front

What is a dilation in geometry?

Back

A transformation that changes the size of a figure but not its shape.

Front

What is the scale factor in a dilation?

Back

The ratio of the size of the image to the size of the original figure.

Front

What is the result of reflecting a point (x, y) across the x-axis?

Back

(x, -y)