SAT Glossary — Key Terms & Definitions
- $f(x+2)$ vs. $f(x)+2$
- Absolute value
- Addition rule
- Angle inscribed in a semicircle
- Angle-angle (AA) similarity
- Arc length
- Area ratio of similar figures
- Associated (vs. caused)
- Axis of symmetry
- Box plot
- Cancel factors, never terms
- Clearing the denominators
- Cofunction identity
- Complement rule
- Completing the square
- Composition of functions
- Conditional probability
- Correlation is not causation
- Degree
- Difference of squares in disguise
- Discriminant
- Discriminant as intersection counter
- Domain
- End behavior
- Exponential function
- Extraneous solution
- Extrapolation vs. Interpolation
- Factor Theorem
- Factored form (of a quadratic)
- Forbidden values
- Frequency weighting
- Function notation
- Growth factor
- Histogram
- Inscribed angle
- Inside vs. outside (transformation rule)
- Interquartile range (IQR)
- Inverse function
- Isolate, then square
- Isolating a quantity
- Joint probability
- Laws of exponents
- Leading coefficient
- Line of best fit
- Margin of error
- Master form ($A_0 b^{t/p}$)
- Mean-versus-median skew inference
- Multiplication rule for independent events
- Multiplicity
- Multiplicity (Odd Crosses vs. Even Bounces)
- Negative exponent
- Negative reciprocal (and the multiply-to-$-1$ check)
- Non-commutativity of composition
- Observational study
- Percent change
- Point-slope form
- Principal square root
- Pythagorean identity
- Quadratic formula
- Random assignment vs. random sampling
- Rational exponent
- Residual
- Resistant measure
- Reverse percentage
- Sampling variability vs. sampling bias
- Slope-intercept form
- Solution trichotomy
- Special right triangles (45-45-90, 30-60-90)
- Standard deviation
- Standard form
- Standard form of a circle
- Successive percentages
- System trichotomy
- Tangency
- Three forms of a quadratic
- Vertex
- Vertex form (of a quadratic)
- Weighted mean
- Ambiguous antecedent
- Comma splice
- Command of evidence (quantitative)
- Command of evidence (textual)
- Conjunctive adverb
- Connotation
- Dangling modifier
- Dependent (subordinate) clause
- Escalation (indeed / in fact)
- Essential vs. non-essential material
- Finite verb
- Idiomatic preposition
- Illogical comparison
- Indefinite pronoun number
- Independent clause
- Inference
- Intensity (constraint)
- Inversion
- Logical comparison
- Logical relation (constraint)
- Main purpose
- Matched-pair rule
- Misplaced modifier
- Necessary/sufficient distinction
- Non-finite form
- Parallelism
- Parenthetical compound (as well as / along with)
- Past perfect (had + past participle)
- Percentage points vs. percent
- Plural vs. possessive
- Polarity (constraint)
- Pronoun case (subjective vs. objective)
- Proximity rule (or / either…or / neither…nor)
- Redundancy family
- Register (constraint)
- Rhetorical synthesis
- Run-on
- Secondary-definition mechanism
- Semicolon–period equivalence
- Subject–verb agreement
- Subordinator
- Text structure
- That vs. which
- Transition
- Words in Context
- Wrong Referent
- Information & Ideas
- Craft & Structure
- Standard English Conventions
- Expression of Ideas
- Algebra
- Advanced Math
- Problem Solving & Data Analysis
- Geometry & Trigonometry
- Sine, Cosine, and Tangent Mnemonic (SOH-CAH-TOA)
- Coordinating Conjunctions: For, And, Nor, But, Or, Yet, So (FANBOYS)
- Distinguishing Linear and Exponential Models
- Converting Mixed Numbers
- Division Restrictions and Lost Solutions
- Translating “Less Than”
- Recognizing Circle Equations
- Conditional Percentages in Two-Way Tables
- Finding Intercepts by Substitution
- Checking Equivalent Expressions by Substitution
- Slope as Rate of Change
- Part-to-Whole Ratios
- Sign Changes When Rearranging Equations
- Interpreting Skewed Distributions
- Angles Formed by a Transversal
- Eliminating a Variable
- Unit Conversion
- Principal Square Roots and Equation Solutions
- Overstated Conclusion
- Contrast and Shift Words
- Unnecessary Punctuation
- Multiple Valid Solutions
- Percent as a Rate per Hundred
- Parameters in Equations
- Answering the Exact Question