Expression 2: "a" left parenthesis, "x" , right parenthesis equals left parenthesis, StartFraction, 1 Over 50 , EndFraction , right parenthesis left parenthesis, negative left parenthesis, "x" minus 50 , right parenthesis Superscript, 2 , Baseline , right parenthesis positive 50 left brace, 0 less than or equal to "x" less than or equal to 100 , right braceax=150−x−502+500≤x≤100
2
Expression 3: "b" left parenthesis, "x" , right parenthesis equals "j" left parenthesis, "x" , right parenthesis minus "a" left parenthesis, "x" , right parenthesis left brace, 0 less than "x" less than or equal to 100 , right bracebx=jx−ax0<x≤100