Candidates Test Practice Test

A continuous function $u$ on $0,5$ has candidates $x=0,1,4,5$ with $u(0)=3,u(1)=2,u(4)=4,u(5)=1$. Where is the absolute maximum?

A continuous function $v$ on $-2,2$ has candidates $x=-2,-1,1,2$ with $v(-2)=0,v(-1)=-4,v(1)=-3,v(2)=-5$. Where is the absolute minimum?