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