Year 9 Maths - October Half-Term Terminology
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13 Terms
Direct proportion
As one quantity increases, the other increases by the same factor. The graph is a straight line that passes through the origin
Inverse proportion
As one quantity increases, the other decreases by the same factor
Reciprocal
The multiplicative inverse of a number
When dividing/multiplying by a negative
Flip inequality signs
What angles on a straight line sum to
180 degrees
What angles around a point sum to
360 degrees
What angles in a triangle sum to
180 degrees
What vertically opposite angles are
Equal
Formula for interior angle sum of a polygon
180(n - 2)
What co-interior angles sum to
180 degrees
Corresponding angles
Equal & lie on the same side of the transversal and in corresponding positions
Alternate angles
Equal & angles on opposite sides of a transversal
Asymptote
A line that a graph approaches but never touches
Note 
Flashcards (57)