SAT Math

Slope as a rate, both intercepts, and building a line from a point.

Function notation forwards and backwards, and what a coefficient MEANS in context.

Substitution, elimination, and deciding whether two lines cross once, never, or everywhere.

The one rule that flips the sign, and the budget questions where a whole-object answer rounds DOWN.

Exponent and radical rules, expanding and factoring — this domain's commonest stem is 'which of the following is equivalent to'.

Quadratics by every route the test uses, plus the discriminant that counts the solutions before you find them.

A line meeting a parabola or a circle, and the constant that makes it tangent.

Quadratics in all three forms, exponential growth and decay, and the form that displays the feature you were asked about.

Splitting a total by a ratio, using a rate across a unit change, and the conversions that cost more points than the mathematics does.

Percent change as a multiplier, reversing one, and successive changes that multiply rather than add.

Mean against median, which one an outlier moves, and spread compared rather than computed.

Reading a line of best fit in the context's own units, and residuals whose sign says which way the model missed.

Two-way tables, the addition rule that subtracts the overlap, and the condition that shrinks the denominator to one row.

Turning an estimate into an interval, deciding what it supports, and the square-root law that makes precision expensive.

Random selection buys generalisation, random assignment buys causation — and neither substitutes for the other.

Radius against diameter, height against slant, and the scaling rule that multiplies area by k squared and volume by k cubed.

Two angle sizes across a transversal, the exterior-angle shortcut, and similarity where areas scale by the square.

Pythagoras and the triples worth recognising, the two special triangles, and the complementary identity.

The equation of a circle, and arcs and sectors as one fraction of the whole applied to two different totals.