Expression 4: StartFraction, StartAbsoluteValue, "x" negative "v" , EndAbsoluteValue Over "v" , EndFractionx−vv
4
Expression 5: StartFraction, left parenthesis, "v" minus "x" , right parenthesis Over "v" , EndFraction left brace, 0 less than or equal to "x" less than or equal to "v" , right bracev−xv0≤x≤v