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Master Desmos for the SAT

Solve SAT Math faster with the built-in Desmos calculator. Learn when to use it, set up problems correctly, and verify your final answer.

  • 30 interactive lessons
  • Step-by-step worked examples
  • SAT-style practice questions
Start Lesson 1Browse all lessons

Beginner

  1. Lesson 10%Introduction to Desmos: your SAT calculatorLearn the essential Desmos controls for the Digital SAT, including expressions, functions, intersections, tables, and angle settings.15 min · 4 practice problems
  2. Lesson 20%Read points of interest from a graphLearn how to use Desmos points of interest to read SAT intercepts, intersections, roots, vertices, maximums, and minimums without choosing the wrong coordinate.20 min · 4 practice problems
  3. Lesson 30%Solve one-variable equationsSolve linear and nonlinear SAT equations by graphing both sides in Desmos, finding every real solution, and submitting the requested quantity.35 min · 4 practice problems
  4. Lesson 40%Solve systems at intersectionsSolve linear and nonlinear SAT systems in Desmos, interpret intersection coordinates, apply conditions, and calculate the requested quantity.35 min · 4 practice problems
  5. Lesson 50%Evaluate, combine, and compose functionsDefine SAT functions in Desmos, evaluate direct and combined outputs, compose functions in the correct order, and interpret results in context.35 min · 4 practice problems
  6. Lesson 60%Inequalities and shaded overlapGraph SAT systems of inequalities in Desmos, read boundary lines, find overlapping solution regions, and test ordered pairs against every constraint.35 min · 4 practice problems

Intermediate

  1. Lesson 70%Sliders for unknown constantsUse Desmos sliders to solve SAT problems with unknown constants, match graph conditions, test exact values, and apply restrictions.35 min · 4 practice problems
  2. Lesson 80%How many solutions?Count SAT equation and system solutions in Desmos, recognize tangency, and distinguish parallel lines from identical equations.45 min · 4 practice problems
  3. Lesson 90%Tables, lists, and calculated columnsUse Desmos tables and lists to organize paired data, evaluate functions, create calculated columns, and compare row-by-row results.50 min · 4 practice problems
  4. Lesson 100%Regression from a supplied tableEnter paired data in Desmos, run linear, quadratic, or exponential regression, and use the fitted model to answer Digital SAT questions.30 min · 4 practice problems
  5. Lesson 110%Mean, median, and frequency tablesCalculate mean and median in Desmos, solve weighted-mean and frequency-table questions, and identify medians and modes on the SAT.50 min · 4 practice problems
  6. Lesson 120%Spread, standard deviation, and data displaysCompare range and standard deviation, read dot plots, box plots, and histograms, and predict how shifts and scaling change center and spread.55 min · 5 practice problems
  7. Lesson 130%Solve percent problems in DesmosTranslate percent-of, increase, decrease, reverse-percent, and successive-change statements into accurate Desmos expressions and equations.55 min · 5 practice problems
  8. Lesson 140%Equivalent expressions by graph overlapVerify equivalent SAT expressions by graph overlap, test answer choices efficiently, and recognize when algebra or domain analysis is stronger.40 min · 5 practice problems
  9. Lesson 150%Restrictions, piecewise functions, and rational expressionsGraph restricted and piecewise SAT functions, preserve rational-expression exclusions, and reject solutions that fail the original equation.55 min · 5 practice problems
  10. Lesson 160%Circle equations in the graphGraph SAT circle equations in Desmos, read center-radius form, classify points, and solve coordinate, intersection, and tangency questions.55 min · 5 practice problems

Advanced

  1. Lesson 170%Custom regression for one unknown parameterUse one numerical condition and a custom Desmos regression to recover one unknown constant in a linear or nonlinear function model.40 min · 5 practice problems
  2. Lesson 180%Custom regression with multiple conditionsLearn to count parameters and independent conditions, fit exact custom models with matched lists or tables, and verify the requested SAT result.45 min · 5 practice problems
  3. Lesson 190%Parameterized points and answer choicesLearn to recognize parameterized-point SAT questions, compare answer-choice paths in Desmos, and confirm which formula works for every parameter value.25 min · 3 practice problems
  4. Lesson 200%Factor, root, and remainder testsConnect factors, roots, and remainders to test polynomial claims quickly in Desmos and choose when direct substitution or algebra is stronger.50 min · 4 practice problems
  5. Lesson 210%Isolate a hidden expressionTurn bulky SAT systems into smaller equations by renaming repeated expressions, mapping them to Desmos, and reading or recovering the requested value.50 min · 4 practice problems
  6. Lesson 220%Exponential models, transformations, and Log ModeRead interval factors and shifts, compare equivalent exponential forms, solve targets by graphing both sides, and use automatic Log Mode with compatible data.75 min · 5 practice problems
  7. Lesson 230%Circle geometry with distance and midpointUse Desmos distance and midpoint commands to turn circle coordinates into centers, radii, equations, and areas.55 min · 5 practice problems
  8. Lesson 240%Regression failure modes: exact fit or best fit?Learn when Desmos regression represents exact SAT conditions, when it approximates measured data, and when regression answers the wrong question.55 min · 5 practice problems

GOAT Mode

  1. Lesson 250%Meet every conditionTurn a dense SAT function prompt into an ordered Desmos model, choose legal witness values, and verify that the requested result stays fixed.50 min · 5 practice problems
  2. Lesson 260%Hidden functions inside quotientsLearn to unwrap function values from a quotient, fit the complete nested model in Desmos, and avoid reading an intercept or output from the wrong function.55 min · 5 practice problems
  3. Lesson 270%Exactness, rounding, and output verificationLearn how to turn Desmos decimals, graph points, and fitted values into exact or correctly rounded SAT answers without losing precision.50 min · 5 practice problems
  4. Lesson 280%From geometry to coordinates to circle regressionLearn when circle regression is useful, turn exact geometry into coordinates, and recover the requested circle value or equation in Desmos.40 min · 4 practice problems
  5. Lesson 290%When not to use DesmosLearn when scratch-work algebra, exact structure, geometry, or conceptual reasoning is faster and safer than opening Desmos on the SAT.40 min · 5 practice problems
  6. Lesson 300%From Desmos to Bluebook: answer entry and final checksConnect efficient Desmos work to valid Bluebook answer entry, pacing decisions, and final checks that recover points.40 min · 5 practice problems
Free SAT Desmos Course: Interactive Calculator Lessons | aniko.ai