Transformations - Enlargment, vector, reflections and rotations

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  • Created by: life365
  • Created on: 21-01-16 19:40
What are the two types of symmetry
1. Reflective symmertry 2. Rotational symmetry
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What are the two things you need for an enlargment
1. A scale factor 2. A point of enlargment
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Are equations of lines that are y=_ vertical or horizontal
horizontal
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Are equations of lines that are x=_ vertical or horizontal
vertical
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With vectors does the number of horizontal squres go at the top or the bottom
Top
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What is onet difference between a fraction and a vector
Either of ; No line or In brackets
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What do you do if you have a negative top vector
Go left
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What do you do if you have a negative bottom vector
Go down
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What happens when you have a negaive scale factor
You go back through the point and measure the number like on normal FROM THE POINT AND NOT THE SHAPE
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What happens when the center of enlargment is inside the shape
The enlarged shape encases the small one
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What do you call a fracional enlargment
Trick question! It's still an enlargment
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What is and easy way to find the point of rotation
Find 2 points that match and then find out the amount between them both horisontaly and verticaly. Halve this and you will find where they cross is the point of enlargment.
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What are the three things you need to define a rotation
1. Center of rotation 2. direction ( is it clockwise or anti-clockwise) 3. Angle of rotation
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If you have a scale factor 3 and the point you measure from is 2cm from point of enlargment, how far from the shape point do you travel?
4cm from point on shape
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When you have a scale factor -3 and the point you measure from is 2cm from point of enlargment, how far from the shape point do you travel?
8cm from point on shape
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What transformation do you use equtions of lines for?
Reflections
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Other cards in this set

Card 2

Front

What are the two things you need for an enlargment

Back

1. A scale factor 2. A point of enlargment

Card 3

Front

Are equations of lines that are y=_ vertical or horizontal

Back

Preview of the front of card 3

Card 4

Front

Are equations of lines that are x=_ vertical or horizontal

Back

Preview of the front of card 4

Card 5

Front

With vectors does the number of horizontal squres go at the top or the bottom

Back

Preview of the front of card 5
View more cards

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