Expression 4: 0 equals "x" minus "y" left parenthesis, 2.5 , right parenthesis0=x−y2.5
4
Expression 5: "y" equals 9.8y=9.8
negative 10−10
1010
5
Expression 6: "y" equals 1.6 plus 2.7 2 "x" minus left parenthesis, StartFraction, 1.0 8 8 Over 2 , EndFraction , right parenthesis "x" squared left brace, 0 less than or equal to "x" less than 5.5 4 , right bracey=1.6+2.72x−1.0882x20≤x<5.54
6
Expression 7: StartFraction, "d" Over "d" "x" , EndFraction left parenthesis, 1.6 plus 2.7 2 "x" minus left parenthesis, StartFraction, 1.0 8 8 Over 2 , EndFraction , right parenthesis "x" squared , right parenthesis left brace, 0 less than or equal to "x" less than 5.5 4 , right braceddx1.6+2.72x−1.0882x20≤x<5.54
7
Expression 8: "y" equals StartFraction, "d" Over "d" "x" , EndFraction left parenthesis, StartFraction, "d" Over "d" "x" , EndFraction left parenthesis, 1.6 plus 2.7 2 "x" minus left parenthesis, StartFraction, 1.0 8 8 Over 2 , EndFraction , right parenthesis "x" squared , right parenthesis , right parenthesis left brace, 0 less than "x" less than 5.5 4 , right bracey=ddxddx1.6+2.72x−1.0882x20<x<5.54