Dilations!

Front

What is a dilation?

Back

A dilation is a transformation that alters the size of a figure, either enlarging or reducing it, while maintaining its shape.

Front

What mathematical operation is used with the scale factor in a dilation?

Back

Multiplication.

Front

What happens when the scale factor of a dilation is less than one?

Back

The dilation is a reduction.

Front

If the scale factor (SF) is greater than one, what type of dilation is it?

Back

Enlargement.

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.

Front

If a point (x, y) is dilated by a scale factor of k, what is the new coordinate?

Back

The new coordinate is (kx, ky).

Front

What is the effect of a scale factor of 1 on a figure?

Back

The figure remains unchanged.

Front

If the scale factor is 0.5, what type of dilation occurs?

Back

Reduction.

Front

How do you find the image of a point under dilation with center at the origin?

Back

Multiply the coordinates of the point by the scale factor.

Front

What is the image of point A(2, 3) under a dilation with a scale factor of 3?

Back

A' (6, 9).