N5. Algebraic expressions and formulae & N6. Functions and graphs (Mathematical Properties & Formulae-S1)
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6 Terms
1
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Arithmetic Sequence
an = a + (n − 1)d
2
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Geometric Sequence
an = a × rn − 1
3
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Quadratic Sequence
an = an2 + bn + c
4
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Gradient formula
gradient = Δx / Δy
5
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Positive gradient (a > 0)
line slopes upward (increasing) → Acute angle
6
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Negative gradient (a < 0)
line slopes downward (decreasing) → Obtuse angle
Note 
Flashcards (162)