Expression 4: StartAbsoluteValue, 2 "r" minus "a" minus "b" , EndAbsoluteValue less than or equal to StartAbsoluteValue, "a" minus "b" , EndAbsoluteValue Has graph.2r−a−b≤a−b
4
Expression 5: 0 less than or equal to min left parenthesis, "r" minus "a" , "b" minus "r" , right parenthesis Has graph.0≤minr−a,b−r
5
Expression 6: 0 less than or equal to min left parenthesis, left bracket, 1 , negative 1 , right bracket left parenthesis, "r" minus left bracket, "a" , "b" , right bracket , right parenthesis , right parenthesis Has graph.0≤min1,−1r−a,b
6
Expression 7: 0 less than or equal to left brace, median left parenthesis, "a" , "b" , "r" , right parenthesis equals "r" , right brace Has graph.0≤mediana,b,r=r