Algebra 1 · Quadratic Functions
Parabola
Algebra 1 · Quadratic Functions
Definition
A parabola is the U-shaped graph of a quadratic function.
Examples
- y = x^2 graphs as a parabola opening up.
- y = -x^2 opens downward.
Key rule
A parabola opens up when a > 0 and down when a < 0.
Memory hook
Parabola = the U-shaped quadratic curve.