Expression 3: "y" equals 1 half "x" minus 1 quarter Has graph. To audio trace, press ALT+T.y=12x−14
3
Expression 4: "y" equals StartFraction, left parenthesis, "x" plus "a" , right parenthesis Over 1 plus "e" Superscript, StartNestedFraction, 1 NestedOver "x" , EndNestedFraction , Baseline , EndFraction Has graph. To audio trace, press ALT+T.y=x+a1+e1x