# Understanding QuasiLinearity

by newphysist
Tags: quasi linear
 P: 12 Hi, I have two questions. (1) I am trying to understand how the following function is quasi-linear: f = min(1/2,x,x^2) For it to be quasi linear it has to be quasi convex and quasi concave at same time. (2) I think the reason the above function is not concave is cause on a certain interval (0,1) f = x^2 which is convex. Am I correct in my reasoning? Thanks guys
 P: 350 What is the domain of your function?
 P: 12 Real numbers R
Homework
 Quote by newphysist (1) I am trying to understand how the following function is quasi-linear: f = min(1/2,x,x^2) For it to be quasi linear it has to be quasi convex and quasi concave at same time.