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
3 of 16
Are equations of lines that are x=_ vertical or horizontal
vertical
4 of 16
With vectors does the number of horizontal squres go at the top or the bottom
Top
5 of 16
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
10 of 16
What do you call a fracional enlargment
Trick question! It's still an enlargment
11 of 16
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
Card 4
Front
Are equations of lines that are x=_ vertical or horizontal
Back
Card 5
Front
With vectors does the number of horizontal squres go at the top or the bottom
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