Grade 9 • Album 4
Quadratics & Applications
Meet parabolas, factoring, completing the square, and the quadratic formula — plus real-world problem solving.
Why it matters
- Quadratic functions → model arcs, area, and motion.
- Parabolas → graph key features like vertex and intercepts.
- Factoring & square → solve equations in multiple ways.
- Quadratic formula → works every time when factoring won’t.
- Word problems → connect algebra to real situations.
Now Playing
A29 — Introduction to Quadratic Functions