Dilations Practice

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.

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, the dimensions of a figure during a dilation.

Front

How do you find the image of a point after dilation?

Back

To find the image of a point after dilation, multiply the coordinates of the point by the scale factor.

Front

What is the image of point G (8, -4) after a dilation with a scale factor of 1/4?

Back

G' (2, -1)

Front

If point A (8, 12) is dilated to point A' (2, 3), what is the scale factor?

Back

The scale factor is 1/4.

Front

What is the image of point G (-10, -6) after a dilation with a scale factor of 1/2?

Back

G' (-5, -3)

Front

How do you dilate a point by a scale factor of 1/2?

Back

Multiply each coordinate of the point by 1/2.

Front

What is the image of point B (3, -8) after a dilation with a scale factor of 1/2?

Back

B' (1.5, -4)