Formulae Flashcards
1
Q
Linear Sequences
A
(difference)x n + (zero term)
2
Q
Quadratic Sequences
A
an² + bn + c
a + b + c
3a + b
2a
3
Q
Cubic Sequences
A
an³ + bn + cn + d a + b + c + d 7a + 3b + c 12a + 2b 6a
4
Q
Geometric Sequences
A
(first term) x (multiplier) ▴n-1
5
Q
Midpoint Formula
A
y₂ + y₁ / 2 , x₂ + x₁ / 2
6
Q
Compound Interest
A
original amount (1 ⁺/﹣ r/100) ▴n
7
Q
Estimate of mean
A
sum of midpoint x frequency / total frequency
