Nonlinear Equations on the Digital SAT: the Desmos Method
A nonlinear equation is asking where two graphs meet. Draw both sides, click the crossing, read the x-coordinate.
Advanced Math·65 practice problems in DesPrep
The Nonlinear Equations lesson is part of DesPrep
It is one of the 17 full lessons inside the subscription — 6 sections that take nonlinear equations from first principles to the fastest Desmos route, with a worked example on every one:
- Every one of these is a crossing question
- Type it the way Desmos reads it
- When one side is already zero
- When both sides have something in them
- When the question wants both crossings
- Fractions: the gap in the curve is not an answer
Then 65 practice problems on this skill alone, solved inside a live Desmos calculator with step feedback and an expert replay on every one.