Dilations and other transformations

Front

What is a dilation in geometry?

Back

A dilation is a transformation that alters the size of a figure but not its shape, using a scale factor.

Tags

CCSS.8.G.A.3

Front

What does a scale factor of 1/2 mean in a dilation?

Back

A scale factor of 1/2 means that the image will be half the size of the original figure.

Tags

CCSS.8.G.A.3

Front

How do you write the algebraic notation for a dilation with a scale factor of 1/2?

Back

(x, y) → (1/2x, 1/2y)

Tags

CCSS.8.G.A.3

Front

How do you write the algebraic notation for a dilation with a scale factor of 3?

Back

(x, y) → (3x, 3y)

Tags

CCSS.8.G.A.3

Front

What is the scale factor if the original triangle is reduced to half its size?

Back

1/2

Tags

CCSS.7.G.A.1

Front

If point B is at (3, -8), what are the coordinates after a dilation by a scale factor of 1/2?

Back

(1.5, -4)

Tags

CCSS.8.G.A.3