Know Your Keywords — Math, Standard
Twenty points spanning special triangles, exponentials, solvability, statistics and factorisation — the recurring high-difficulty math question types, each reduced to a cue and a thumb rule.
KYK Standard comprises the highest order difficulty questions that have shown up in previous tests, categorised by the common rules and theorems behind them. As you work through the sheet, focus on the method prescribed in each point’s keyword box, and take note of any question that could become a stub error for you.
, , 60 degrees, 45 degrees, isosceles right triangle.
sin A, cos (90 − A), sin A = cos B.
A function whose formula is given, where the number of unknowns equals the number of coordinates given.
Sum and product of roots; roots given and a coefficient unknown.
Exponential functions with fractional powers.
“Which of the following equations displays, as a constant or coefficient, the maximum value / minimum value / x-intercept … of the function?”
p% of f(x), f(x) increased by p%… linear or exponential models.
Expressions to be rewritten using exponent rules.
No solutions, one solution, infinite solutions.
A two-way probability table.
Similarity or congruence criteria being tested.
A percentage within a percentage.
Causes, generalises, largest population, margin of error.
Unit conversion.
2 solutions / 1 solution / 0 solutions; or 1 linear and 1 quadratic equation, for an SPR.
Angles given in variables.
A percentage question connecting three or more quantities.
Parallelograms, rhombuses, trapeziums, kites, and regular polygons.
Comparison of means, medians, or standard deviations.
“Which expression is a factor…” or “…cannot be a factor…”