Dilations, Scale Factor, Exterior Angle

Given points A(1, -3) and B(-2, 8), find the coordinates of the image if the line segment is dilated by a scale factor of 3 with a center of C(4, -2).

• A'(-5, -5) and B'(-14, 28)

• A'(3, -9) and B'(-6, 24)

• A'(15, -15) and B'(6, 18)

• A'(5, -9) and B'(14, -18)

What scale factor was used to produce this dilation?

• 2

• -2

• ¹/₂

• 1

Choose the correct scale factor for the dilation.

• 2.5

• 1.5

• 2/3

• 1/3

What is the center of dilation?

• (1, 1)

• (3, 0)

• (-3, 0)

• (3, -2)

In the figure above, a dilation from A to A' has occurred. What is the scale factor?

scale factor = _______

Mathematical Equivalence

ON

In the figure above, a dilation from A to A' has occurred. What is the scale factor?

Mathematical Equivalence

ON

Given points F(0, 2) and G(4, -8), find the coordinates of the image if the line segment is dilated by a scale factor of 0.5 with a center of C(-2, 6).

• F'(3, 2) and G'(3, -5)

• F'(1, -2) and G'(3, -7)

• F'(-3, 10) and G'(-1, 5)

• F'(-1, 4) and G'(1, -1)

Figure A is the pre-image and Figure B is the image in the figure above. Select ALL that apply.

• The center of dilation is (1, 2)

• The center of dilation is (0, 0)

• The center of dilation is (-4, 0)

• A dilation occurred with a scale factor of 3.

• A dilation occurred with a scale factor of 1/3.

A dilation with what scale factor has occurred?

• 2

• 3

• 1/3

• 1/2

What is the center of dilation?

• (2, -1)

• (0, 0)

• (-2, 1)

• (-1, 2)