Dilations and Scale Factor Flashcard

Front

What is a dilation in geometry?

Back

A transformation that changes the size of a figure but not its shape.

Front

If the scale factor is 3, and the original figure has coordinates (2, 5), what are the coordinates of the dilated figure?

Back

(6, 15)

Front

How can you use the scale factor to perform a dilation on a given figure?

Back

Multiply the coordinates of the figure by the scale factor.

Front

What is the scale factor from the small shape to the big shape if the scale factor is 2?

Back

2

Front

Dilate Point B (3, 2) by a scale factor of 2. What are the new coordinates?

Back

(6, 4)

Front

What happens to the coordinates of a figure when you dilate it by a scale factor less than 1?

Back

The coordinates decrease in size.

Front

If a figure is dilated by a scale factor of 1, what happens to the figure?

Back

The figure remains the same size.

Front

What is the scale factor if the original figure has a length of 4 and the dilated figure has a length of 8?

Back

2

Front

If the coordinates of a point are (4, -3) and the scale factor is 0.5, what are the coordinates of the dilated point?

Back

(2, -1.5)

Front

What is the effect of a negative scale factor on a figure?

Back

It reflects the figure across the origin and changes its size.