Expression 4: "y" equals cosine left parenthesis, "x" minus 1 , right parenthesisy=cosx−1
4
Expression 5: "y" equals sine left parenthesis, "x" , right parenthesisy=sinx
5
Expression 6: "y" equals sine left parenthesis, "x" plus left parenthesis, StartFraction, pi Over 4 , EndFraction , right parenthesis , right parenthesisy=sinx+π4