SL 2.6—Quadratic functions
- Syllabus
- First assessment 2021
- Objective
- —
- Level
- HL
Move between quadratic forms to expose meaning
Move between quadratic forms to expose meaning.
Standard, factorized and vertex forms reveal different features: intercept, roots, and vertex/axis.
Worked example
x²−6x+5=(x−1)(x−5)=(x−3)²−4.
Worked example
Which form shows roots immediately? factorized form.
Common boundary
Do not read the vertex from the constant term in standard form.