STA MATH KEY TERMS 2024/2025
QUESTIONS AND ANSWERS
integers
..., -3, -2, -1, 0, 1, 2, 3, ...
quadratic formula
[-b ± √(b² - 4ac)] / (2a)
slope formula
(y₂- y₁) / (x₂- x₁)
rationals
fractions (anything expessable as a ratio of integers)
, reals
integers, rationals, plus special #s (like √2 or pi)
order of opperations
PEMDAS (Parentheses / Exponents / Multiply / Divide / Add / Subtract)
Arithmetic Sequences
t₁, t₁+ d, t₁+2d, ...
Geometric Sequences
t₁, t₁· r, t₁· r², ...
Factors
ex. factors of 52 are 2, 4, 13, and 26
Multiples
QUESTIONS AND ANSWERS
integers
..., -3, -2, -1, 0, 1, 2, 3, ...
quadratic formula
[-b ± √(b² - 4ac)] / (2a)
slope formula
(y₂- y₁) / (x₂- x₁)
rationals
fractions (anything expessable as a ratio of integers)
, reals
integers, rationals, plus special #s (like √2 or pi)
order of opperations
PEMDAS (Parentheses / Exponents / Multiply / Divide / Add / Subtract)
Arithmetic Sequences
t₁, t₁+ d, t₁+2d, ...
Geometric Sequences
t₁, t₁· r, t₁· r², ...
Factors
ex. factors of 52 are 2, 4, 13, and 26
Multiples