Dilation in Geometry Concepts

What is a dilation in geometry?

• A transformation that changes the shape and size of an object.

• A transformation that produces an image that is the same shape but a different size than the original.

• A transformation that only changes the position of an object.

• A transformation that flips an object over a line.

If a triangle with vertex B(1,4) is dilated with a scale factor of 2, what are the coordinates of the image B'?

• (1,8)

• (2,4)

• (2,8)

• (4,1)

What is the scale factor of the dilation for the given preimage and image?

• 2

• 3

• 5

• 10

What are the coordinates of the center of dilation for the given preimage and image?

• (0, 0)

• (-8, 10)

• (2, 0)

• (-3, -10)