Notes Transformations: Dilations
Notes Transformations: Dilations
Some examples of what dilations look like in real life:
|A dilation is a transformation that produces an image that is the same _________________ |[pic] |
|as the original, but is a different ____________. A dilation _______________ or | |
|_______________ the original figure. | |
| | |
|Scale factor of a dilation is what you’re multiplying by. | |
| | |
|Remember, dilations are ___________________or _____________________. A figure and its | |
|dilation are _________________. | |
Some more example:
Find the scale factor for the dilation that maps the solid line figure onto the dashed figure:
[pic]
Determine if one figure is a dilation of the other
[pic] [pic]
|Ex 1: Scale factor? |Ex 2: Scale factor? |
| |[pic] |
|[pic] | |
|Ex 3: Under a dilation, triangle A(0,0), B(0,4), C(6,0) becomes triangle A'(0,0), |Ex 4: What is the scale factor of dilation? |
|B'(0,10), C'(15,0). What is the scale factor for this dilation? |[pic] |
| | |
|Ex 5: Dilate this by a scale factor of 1/4 |Ex 6: Dilate this triangle by a scale factor of 2.5 |
|[pic] |[pic] |
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