SAT Math
quadratic formula—ANSWER--[-b ± √(b² - 4ac)] / (2a)
slope formula—ANSWER--(y₂- y₁) / (x₂- x₁)
integers—ANSWER--..., -3, -2, -1, 0, 1, 2, 3, ...
rationals—ANSWER--fractions (anything expessable as a ratio of integers)
reals—ANSWER--integers, rationals, plus special #s (like √2 or pi)
order of opperations—ANSWER--PEMDAS (Parentheses / Exponents /
Multiply / Divide / Add / Subtract)
Arithmetic Sequences—ANSWER--t₁, t₁+ d, t₁+2d, ...
Geometric Sequences—ANSWER--t₁, t₁· r, t₁· r², ...
Factors—ANSWER--ex. factors of 52 are 2, 4, 13, and 26
Multiples—ANSWER--ex. multiples of 20 are 40, 60, 80, 100, ...
percentages—ANSWER--part = (percent / 100) x whole
average—ANSWER--average = sum of terms / number of terms
, average speed—ANSWER--average speed = total distance / total time
sum—ANSWER--sum = average x (number of terms)
mode—ANSWER--mode = value in the list that appears most often
median—ANSWER--median = middle value in the list
fundamental counting principle—ANSWER--if an event can happen in N
ways, and another, independent event can happen in M ways, then both
events together can happen in N x M ways.
probability—ANSWER--probability = number of desired outcomes / number
of total outcomes
adding exponents—ANSWER--x^a · x^b = x^(a+b)
subtracting exponents—ANSWER--x^a / x^b = x^(a-b)
negative exponents—ANSWER--1 / x^b = x^(-b)
multiplying exponents—ANSWER--(x^a)^b = x^(a·b)
x^0—ANSWER--1
roots—ANSWER--√(xy) = √x · √y
FOIL—ANSWER--(x+a)(x+b) = x^2 + (b+a)x + ab
difference of squares—ANSWER--a^2 -b^2 = (a+b)(a-b)
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law, Copyrighted By Brittie Donald
quadratic formula—ANSWER--[-b ± √(b² - 4ac)] / (2a)
slope formula—ANSWER--(y₂- y₁) / (x₂- x₁)
integers—ANSWER--..., -3, -2, -1, 0, 1, 2, 3, ...
rationals—ANSWER--fractions (anything expessable as a ratio of integers)
reals—ANSWER--integers, rationals, plus special #s (like √2 or pi)
order of opperations—ANSWER--PEMDAS (Parentheses / Exponents /
Multiply / Divide / Add / Subtract)
Arithmetic Sequences—ANSWER--t₁, t₁+ d, t₁+2d, ...
Geometric Sequences—ANSWER--t₁, t₁· r, t₁· r², ...
Factors—ANSWER--ex. factors of 52 are 2, 4, 13, and 26
Multiples—ANSWER--ex. multiples of 20 are 40, 60, 80, 100, ...
percentages—ANSWER--part = (percent / 100) x whole
average—ANSWER--average = sum of terms / number of terms
, average speed—ANSWER--average speed = total distance / total time
sum—ANSWER--sum = average x (number of terms)
mode—ANSWER--mode = value in the list that appears most often
median—ANSWER--median = middle value in the list
fundamental counting principle—ANSWER--if an event can happen in N
ways, and another, independent event can happen in M ways, then both
events together can happen in N x M ways.
probability—ANSWER--probability = number of desired outcomes / number
of total outcomes
adding exponents—ANSWER--x^a · x^b = x^(a+b)
subtracting exponents—ANSWER--x^a / x^b = x^(a-b)
negative exponents—ANSWER--1 / x^b = x^(-b)
multiplying exponents—ANSWER--(x^a)^b = x^(a·b)
x^0—ANSWER--1
roots—ANSWER--√(xy) = √x · √y
FOIL—ANSWER--(x+a)(x+b) = x^2 + (b+a)x + ab
difference of squares—ANSWER--a^2 -b^2 = (a+b)(a-b)
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law, Copyrighted By Brittie Donald
