MINI LESSON
Comparing Quadratic Functions
Quadratic functions can be compared by their minimum or maximum values.
A function written in equation form can often be analyzed by finding its vertex or axis of symmetry.
A graph can also be used to compare quadratic functions visually.
The axis of symmetry of a parabola is the vertical line through its vertex.
Question 1
Four quadratic functions are represented below. Which function has the smallest minimum value?
Question 2
The axis of symmetry is \(x=2\) for which quadratic function?