Algebra The largest domain on the test, and the one everything else leans on. Linear equations in one and two variables, linear functions, systems, and inequalities — five official skills that between them carry about a third of the Math section.
The course — 5 units, in order
01 Linear Equations in One Variable The skill every other Algebra question stands on: clearing fractions and decimals, distributing without losing a sign, deciding whether an equation has one solution, none, or every number at once — and finding the equation hiding inside a paragraph. Start 02 Linear Equations in Two Variables Slope as a rate, both intercepts, the three forms the test writes a line in, parallel and perpendicular slopes, lines read out of tables — and the modelling questions that ask what a coefficient MEANS. Start 03 Linear Functions Function notation and what it is really asking, linear functions read out of graphs and tables, and the comparison questions where two plans, machines or prices meet at exactly one crossover point. Start 04 Systems of Two Linear Equations in Two Variables Substitution and elimination and knowing which one the system is asking for; deciding whether two lines cross once, never, or everywhere; and the count-and-weight skeleton behind almost every system word problem on the test. Start 05 Linear Inequalities in One or Two Variables The one rule that separates inequalities from equations, the half-plane a two-variable inequality shades, and the budget-and-quota systems the test builds its constraint questions from — including when to round down. Start