SAT Math / Data Analysis

Regression in Desmos

Part of the full libraryOpens January 2, 2027 · $97 for a year
What’s included
correlationA pattern where two quantities tend to change together: both rise, or one falls as the other rises. It does not prove that one causes the other.

You’ll leave with these skills

  1. Find a model’s rate or starting value from a tableType the table into Desmos, type the model’s equation after a tilde, and read the value of the letter the question asks for.
  2. Estimate a line of best fit from scattered dataFit a line to the table in Desmos and pick the answer choice closest to the slope or prediction it prints.
  3. Fit a model written in the question’s own formType the equation after the tilde exactly as the question writes it, so each letter Desmos prints is the one the question asks about.
  4. Predict a fitted model’s output for a later yearEnter the years in the table as counts from the first year, fit the model, and type the later year’s count into the model in a new input box.

This lesson is part of the full library

207 lessons that teach every skill the SAT tests
  • 71Math
  • 40Reading
  • 24Grammar
  • 10 full-length practice tests to build test-day stamina and confidence
  • A Desmos simulator to solve math questions faster
  • A step-by-step guide to every practice test question
  • The Bluebook Simulator, so test day feels familiar
  • A drawing for every key term, so new ideas make sense at a glance

Explore the full library