Dilations and Translations

Front

What is a translation in geometry?

Back

A translation is a transformation that moves every point of a figure the same distance in the same direction.

Front

What are the coordinates of a point after translating it 5 units left and 2 units up from (0, 0)?

Back

(-5, 2)

Front

What is the scale factor in a dilation?

Back

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

Front

If a dilation produces a congruent figure, what is the scale factor?

Back

1

Front

What happens to a figure when the scale factor is greater than 1?

Back

The figure is enlarged.

Front

What happens to a figure when the scale factor is less than 1?

Back

The figure is reduced.

Front

What is the rule for translating a point down 6 units?

Back

(x, y - 6)

Front

What is the rule for dilating a figure to be 3 times taller and 5 times wider?

Back

(3x, 5y)

Front

What is the effect of a dilation with a scale factor of 1/2?

Back

The figure is reduced to half its size.

Front

What is the effect of a dilation with a scale factor of 2?

Back

The figure is enlarged to twice its size.