1. Geometry
4-4 Dilations

2. Goals Identify and perform dilations.
Solve real-life problems involving scale factors and dilations.
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3. 4-4 Dilations
A dilation is a transformation in which a figure is enlarged or reduced with respect to a fixed point.
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4. 4-4 Dilations
A dilation is a transformation in which a figure is enlarged or reduced with respect to a fixed point C called the center of dilation and a scale factor k, which is the ratio of the lengths of the corresponding sides of the image and the preimage.
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5. 4-4 Dilations
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6. 4-4 Dilations and Scale factor
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7. Ex. 1 Enlargement or Reduction
1. Find the scale factor.
2. Determine if the image is enlarged or reduced.
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8. 4-4 Dilation
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9. 4-4 Dilating a figure in x-y plane
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10. 4-4 Dilating a figure in x-y plane
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11. 4-4 Dilating a figure in x-y plane
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12. 4-4 Using negative Scale factor
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13. 4-4 Finding a Scale factor
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14. 4-4 Finding the length of an image
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15. CW 4-4: 1,2,3,4,5,6
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16. CW 4-4: 15,16,17
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17. CW 4-4: Solutions
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