Non-Origin Dilations

If the triangle on the left is mapped onto the triangle on the right, what is the scale factor?

• 1

• 3

• 1/3

• 8

If triangle ABC is dilated by a scale factor of 1/2 centered at (2, -1), give the coordinates of C'.

• (4, -2)

• (12, -6)

• (3, -1.5)

• (10, -5)

Give the coordinates for triangle A'B'C', the image of triangle ABC after a dilation of 2 centered at (-5, -1):

A non-rigid transformation that moves a point along a line by changing the distance from a fixed point is called a:

a transformation that ​changes the size (enlargement or reduction) of a figure is called a ​ ​ ​ (a)  

• dilation

• rotation

• reflection

• translation

What type of dilation is represented? Purple to orange

• Enlargement

• Reducton

The scale factor for this dilation is:

Mathematical Equivalence

ON

Is the following a dilation?

• Yes

• No

Which function was used to produce the image?

• f(x, y) = (1/7x, 1/7y)

• f(x, y) = (7x, 7y)

• f(x, y) = (4x, 4y)

• f(x, y) = (8x, 8y)

What type of dilation is represented? blue to green

• Enlargement

• Reduction