Linear Equations — Digital SAT SAT Math revision notes
A 3-page visual revision sheet for Linear Equations, written for Digital SAT SAT Math. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.
What this Linear Equations sheet covers
- The four forms worth recognising
- one variable, standard
- two variables, standard
- slope-intercept
- point-slope, through (x_1,y_1)
- Slope, three ways to get it
- from two points
- rise over run
- from Ax + By = C
- Two lines that never cross, and one that never tilts
- Slope relationships to know cold
- Parallel
- Perpendicular
- Same line
- Shifted up by k
- Reading a linear model in words
- Traps that cost points
- Tricks that save time
How CapCompass uses this sheet
These notes are not a standalone PDF. CapCompass plans SAT Math chapter by chapter against your real exam dates and free hours, and when the plan reaches Linear Equations the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.
More SAT Math revision notes
- Area and Volume
- Circles
- Equivalent Expressions and Polynomials
- Evaluating Statistical Claims
- Inference and Margin of Error
- Linear Functions
- Linear Inequalities
- Lines, Angles, Triangles
- Nonlinear Equations in One Variable
- Nonlinear Functions
- Nonlinear Systems
- One-variable Data
- Percentages
- Probability and Conditional Probability
- Ratios, Rates and Proportions
- Systems of Equations
- Triangles and Trigonometry
- Two-variable Data
- Units, Rates and Conversions