Expression 5: "y" equals negative 1 left parenthesis, "x" minus 5.1 , right parenthesis squared plus 5.3 left brace, 5.1 less than or equal to "x" less than or equal to 6.8 2 , right bracey=−1x−5.12+5.35.1≤x≤6.82
5
Expression 6: "y" equals StartFraction, 1 Over 17 , EndFraction left parenthesis, "x" minus 0 , right parenthesis squared plus 2.2 left brace, negative 6.1 3 less than or equal to "x" less than or equal to negative 1.1 8 , right bracey=117x−02+2.2−6.13≤x≤−1.18
6
Expression 7: "y" equals StartFraction, 1 Over 8.5 , EndFraction left parenthesis, "x" minus 0 , right parenthesis squared plus 2.2 left brace, 1.1 8 less than or equal to "x" less than or equal to 5.1 4 , right bracey=18.5x−02+2.21.18≤x≤5.14