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17 Cards in this Set
- Front
- Back
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Transformation |
A function that changes the position, shape, and size of a figure |
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Pre image |
Original image (A) T(A) = A' |
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Image |
New image (A') T(A) = A' |
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Function notation examples |
T(A) = A' (x, y) - (x + 2, y - 3) X,y or A means the original image coordinates |
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What does it mean if a transformation preserves distance? |
If the distance between any two points of the preimage equals the distance between the corresponding points of the image |
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What does it mean if a transformation preserves angle measure? |
If the measure of all angles of the pre-image equals the measure of all the corresponding angles of the image |
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Four transformation types |
(fourth one is called dilation) |
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Isometry |
A transformation that does not change the shape or size of a figure |
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Finding the imagine of a number |
Substitute the number into the equation given |
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Finding pre image |
Setting the given equation equal to the number |
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When is f a one to one function? |
When it's not a quadratic equation |
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When is a transformation not rigid |
When the given equation has multiplication |
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If a transformation is rigid... |
The image and pre image are the same :) |
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How to find the preimage of coordinates |
To find x, set the x equation equal to the x coordinate. Same for y |
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How to find AB when given the coordinates |
Use the distance formula. If the given equation has no multiplication, the image is the same as pre image |
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How to find the image if a transformation is not a rigid motion |
Use the image equation and use the coordinates you get in the distance formula |
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Rules for reflections in a coordinate plane |
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