Dilation Around a Fixed Point

A _______ is a transformation that enlarges or reduces a figure by a scale factor relative to a center point.

• Rotation

• Translation

• Dilation

• Reflection

What Transformation is visible?

• Reflection

• Translation

• Dilation

• Rotation

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

• ½

• ¼

• 4

• 2

Which of the following shows a dilation?

• 
• 
• 
• 

The scale factor for this dilation is:

Mathematical Equivalence

ON

An office supply store sells index cards in two different sizes. The large size is an enlargement of the small size. Both sizes are shown. Find the scale factor of the enlargement.

• 2

• 3

• 4

• 5

What is the center?

• the point that is transformed to itself by a dilation

• a fixed point around which a figure is rotated

• the intersection of the x-axis and y-axis (0,0)

• the vertical line in a coordinate grid

What type of transformation is this?

• Reflection

• Rotation

• Dilation

• Translation

Which triangle is the pre-image?

• Blue

• Purple

When you dilate the figure with a scale factor of 3, what is the location of B'?

• (12, 0)

• (12, 12)

• (4, 3)

• (0, 12)