C: left parenthesis, 3 , 19 , right parenthesis3,19
Label:
3
Expression 4: StartFraction, negative 5 minus 3 Over negative 1 minus 1 , EndFraction left parenthesis, "x" plus 1 , right parenthesis minus 5 left brace, negative 1 less than or equal to "x" less than or equal to 1 , right brace−5−3−1−1x+1−5−1≤x≤1
4
Expression 5: StartFraction, 19 minus 3 Over 3 minus 1 , EndFraction left parenthesis, "x" minus 3 , right parenthesis plus 19 left brace, 1 less than or equal to "x" less than or equal to 3 , right brace19−33−1x−3+191≤x≤3
5
Expression 6: "x" squared plus 4 "x" minus 2x2+4x−2