Algebra

≈35% of Math — tied for the largest domain on the test. Five skill points, and the foundation the rest of Math stands on.

In this module

Linear equations in one variableIncluding the no-solution and infinite-solution conditions, where the hard items live.Linear equations in two variablesRead a rate and a starting value off a sentence, table, or graph — without losing either.Linear functionsFunction notation, and what f(x) means when x is a number of months rather than a number.Systems of two linear equationsSubstitution, elimination, Desmos — and the coefficient conditions for no or infinite solutions.Linear inequalitiesOne and two variables, shaded regions, and the sign-flip that costs more points than anything else here.Algebra — module quizInterleaved across all five skills — no two consecutive items share a lesson.