Algebra — Grade 9
Interactive algebra and precalculus lessons by ironfern.
What’s covered
- §2 — Quadratic Functions — Functions, transformations, quadratic equations, inequalities, the parabola
- §3 — Equations with Two Variables — Linear equations, graphical and algebraic solution methods, systems
- §4 — Inequalities with Two Variables — Half-planes, systems of inequalities, proof techniques, AM-GM & Cauchy-Schwarz
- §5 — Applied Mathematics — Mathematical modelling, percentage calculations, growth rates
- §6 — Combinatorics & Probability — Induction, permutations, arrangements, combinations, Pascal’s triangle, classical probability, statistics
- §7 — Number Sequences — Arithmetic & geometric progressions, sums, limits, infinite series, summation notation