IB Maths
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14 Terms
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A
(x, y) a point on the cartesian plane
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[AB]
The line segment from A to B
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AB
The length of [AB]
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(AB)
The line segment containing A and B
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Â
Angle at point A
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CÂB
The angle between [CA] and [AB]
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∆ABC
Triangle ABC
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Gradient of a horizontal line
0
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Gradient of a vertical line
undefined
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Gradients of parallel lines are
Equal
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Gradients of perpendicular lines
Are inverses of each other which means themselves multiplied by -1
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What is a perpendicular bisector
A line that passes through the midpoint of the line segment and is perpendicular to it
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How can you prove if something is a function?
The vertical line test. If the line passes through two points anywhere along the relation, it is not a function.
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Note 
Flashcards (26)