Transformations/Pythag Review

When the scale factor of a dilation is less than one, the dilation is a reduction.

• True

• False

If your SF=2.5, what type of dilation is it?

• reduction

• enlargement

When a dilation has a scale factor greater than one, the dilation is an enlargement.

• True

• False

In a dilation what mathematical operation is used with the scale factor?

• division

• addition

• multiplication

• subtraction

If your SF=0.6, what type of dilation is it?

• enlargement

• reflection

• translation

• reduction

If blue is the pre-image, describe the transformation

• Rotation 180^o

• Dilation by a factor of 1/2

• Translation 6 right and 6 down

• Translation six left and six up

Describe the transformation shown.

• Rotation 90^o clockwise

• Dilation by a factor of 3

• Translation 2 units down

• Reflection across the x axis.

Describe the transformation shown

• Reflection across the x axis.

• Translation down 6 and left 1

• Dilation by a factor of 2/3

• Rotation of 180^o

Describe the transformation shown

• Rotation of 270^o counter clockwise

• Translation right one unit and up one unit

• Dilation by a scale of 2

• Dilation by a scale of 1/2

Write a rule for the translation.

•  (x -1, y  + 2)
•  (x -2, y  + 1)
•  (x +2, y  - 1)
• (x +1, y  -  2)