Expression 6: "y" equals 5 StartFraction, left parenthesis, "x" , right parenthesis left parenthesis, "x" minus left parenthesis, StartNestedFraction, "c" Subscript, "a" "v" "g" , Baseline NestedOver "c" Subscript, 0 , Baseline , EndNestedFraction , right parenthesis Superscript, "p" , Baseline "c" Subscript, "a" "v" "g" , Baseline , right parenthesis Over 1 plus "x" squared , EndFractiony=5xx−cavgc0pcavg1+x2