Figure 8
\(f\) is defined on [\(a, b\)]. For all \(x\) in [\(a,b\)], \(f(u)\geq f(x)\). For all \(x\) in [\(a,b\)], \(f(v)\leq f(x)\). \(f(u)\) is the absolute maximum value of \(f\). \(f(v)\) is the absolute minimum value of \(f\).
