Dilations Practice Intro

Front

What is Dilation?

Back

Dilation means to enlarge or reduce a figure while maintaining its shape.

Front

Which statement is FALSE about dilations?

Back

The angles of the shape get larger or smaller.

Front

What is the pre-image in a transformation?

Back

The figure before a transformation has occurred.

Front

If a triangle has vertices A(0,0), B(8,0), C(3,-2), what are the coordinates after a dilation with a scale factor of 4?

Back

A(0,0), B(32,0), C(12,-8)

Front

What transformation does the graph show if it appears to have been turned around a point?

Back

Rotation.

Front

What happens to the sides of a shape during a dilation?

Back

The sides of the shape get larger or smaller, but the shape remains similar.

Front

What is the scale factor in a dilation?

Back

The ratio that describes how much a figure is enlarged or reduced.

Front

If a shape is dilated by a scale factor of 2, what happens to its area?

Back

The area is multiplied by 4 (2^2) because area scales with the square of the scale factor.

Front

What is the image in a transformation?

Back

The figure after a transformation has occurred.

Front

How do you perform a dilation on a point (x,y) with a scale factor k?

Back

The new coordinates are (kx, ky).