Cheat Sheet
4 sections
•
16 key points
1
Reading & Writing: Key Strategies
Read the question first, then the passage, know what you're looking for
Evidence-based questions: the answer must be directly supported by the text
Eliminate obviously wrong answers first, then compare remaining choices
Vocabulary in context: re-read the sentence with each answer choice plugged in
2
Writing & Language Rules
Subject-verb agreement: identify the true subject (ignore prepositional phrases)
Comma rules: FANBOYS conjunctions, introductory phrases, non-essential clauses
Pronoun clarity: a pronoun must clearly refer to one specific noun (antecedent)
Parallel structure: items in a list or comparison must follow the same grammatical form
3
Math: Algebra & Functions
Slope-intercept form: y = mx + b (m = slope, b = y-intercept)
Quadratic formula: x = (-b ± √(b²-4ac)) / 2a
Systems of equations: substitution or elimination method
Function notation: f(x) means 'the output when input is x', treat it like y
4
Math: Geometry & Data
Circle: area = πr², circumference = 2πr
Triangle: area = ½bh; Pythagorean theorem: a² + b² = c²
Special right triangles: 30-60-90 (x, x√3, 2x) and 45-45-90 (x, x, x√2)
Percent change = (new - old) / old × 100
Sample Flashcards
Card 1 of 6
Question
What is the quadratic formula?
Answer
x = (-b ± √(b²-4ac)) / 2a, where ax² + bx + c = 0. The discriminant (b²-4ac) tells you the number of solutions: positive = 2, zero = 1, negative = 0 real solutions.
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Quick Quiz
1. If f(x) = 3x² - 2x + 1, what is f(2)?
2. Which sentence demonstrates correct parallel structure?
3. A shirt originally costs $40 and is on sale for $28. What is the percent decrease?
4. In a 30-60-90 triangle, if the shortest side is 5, what is the hypotenuse?
Frequently Asked Questions
What is the format of the digital SAT?
The digital SAT has two sections: Reading & Writing (54 questions, 64 minutes) and Math (44 questions, 70 minutes). It uses adaptive testing, the difficulty of the second module depends on your performance in the first.
What is a good SAT score?
The SAT is scored on a scale of 400-1600. A score above 1200 is considered competitive. Top universities often look for scores of 1400+. The national average is around 1050.
Can I use a calculator on the SAT?
Yes, a calculator is allowed on the entire math section of the digital SAT. The Desmos graphing calculator is also built into the testing app.
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