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| What is a line reflection? |
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"flips" every point of a figure over the same line
A.K.A. Mirror Image |
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| What to do if doing a reflection over a line that has no rule given: |
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| Plot the point and draw the line that you are reflecting over and count one point to the line and draw it on the other side of the line |
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(1) Horizontal, H
(2) Vertical, V
(3) Diagonal, D |
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| If you can put a thumbtack in the middle of the shape and you flip it 180 degrees and it is the same when it is flipped, it has point symmetry |
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Point Reflection Thur origin
Rule: (x,y) goes to (-x,-y) |
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| To find the Geometric figure on a degree rotation that you need to find the shape, what do you do? |
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| 360 divided by the degree rotation that you are doing |
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| T means you are doing a translation |
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| (x + the first number after the 'T', y + the second number after the 'T') |
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| If given a point and prime point, what do you do to find the Translation rule? |
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| Algebra! Non-Prime x or y + variable = Prime x or y |
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Enlargement or Reduction, size change, found as capital 'D' with a lower case 'k' next to it
(x,y) goes to (x multiplied by k, y multiplied by k) |
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Flips, Slides, and Turns
Symbol is a capital 'R'
Always turn counter-clockwise |
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| a transformation that preserves distance between points. Image and Pre-Image Congruent |
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| Similarity Transformation |
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| a transformation that produces an image that is similar to the Pre-Image but not necessarily congruent |
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| An isometry that preserves orientation. The clockwise order of the points in the image and pre-image is the same. |
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| an isometry taht does not preserve orientation. the clockwise order of the points in the image and the pre-image is reversed. |
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| Translation, rotation, point reflection, line reflection and glide reflection. |
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| translation, rotation and point reflection |
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| line reflection and glide reflection |
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| translation, rotation, port reflection, line reflection and glide reflection. |
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| dilation, translation, rotation, port reflection, line reflection and glide reflection. |
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| dilation, translation, rotation, port reflection, line reflection and glide reflection |
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| dilation, translation, rotation, port reflection, line reflection and glide reflection |
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| dilation, translation, rotation, port reflection, line reflection and glide reflection |
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| dilation, translation, rotation and point reflection |
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