Dilation and Scale Factor

Front

What is Dilation?

Back

Dilation means to enlarge or reduce an object while maintaining its shape.

Front

What is a scale factor?

Back

The scale factor is a number that describes how much a figure is enlarged or reduced during a dilation.

Front

If the scale factor is 1/2, what does it mean?

Back

It means the image will be half the size of the original figure.

Front

If the scale factor is 2, what does it mean?

Back

It means the image will be twice the size of the original figure.

Front

What is the coordinate of the image of the point B (-10,-6) under a dilation with center at the origin and scale factor k = 1/2?

Back

(-5,-3)

Front

What is a scale drawing?

Back

A drawing that shows a real object enlarged or reduced in size.

Front

How do you calculate the image coordinates under dilation?

Back

Multiply each coordinate of the original point by the scale factor.

Front

What happens to the shape of an object during dilation?

Back

The shape remains the same, but the size changes.

Front

If a triangle has vertices at (2,3), (4,5), and (6,7), what are the coordinates after a dilation with a scale factor of 2?

Back

(4,6), (8,10), (12,14)