| 99940 | The Rectangular Coordinate Systems and Graphs · Exercise 12 | Medium | |
| 99942 | The Rectangular Coordinate Systems and Graphs · Exercise 14 | Medium | |
| 99944 | The Rectangular Coordinate Systems and Graphs · Exercise 16 | Medium | |
| 99980 | The Rectangular Coordinate Systems and Graphs · Exercise 56 | Medium | |
| 99946 | The Rectangular Coordinate Systems and Graphs · Exercise 18 | Medium | |
| 99948 | The Rectangular Coordinate Systems and Graphs · Exercise 20 | Medium | |
| 99950 | The Rectangular Coordinate Systems and Graphs · Exercise 22 | Medium | |
| 99952 | The Rectangular Coordinate Systems and Graphs · Exercise 24 | Medium | |
| 99954 | The Rectangular Coordinate Systems and Graphs · Exercise 26 | Medium | |
| 99956 | The Rectangular Coordinate Systems and Graphs · Exercise 28 | Medium | |
| 99958 | The Rectangular Coordinate Systems and Graphs · Exercise 30 | Medium | |
| 99960 | The Rectangular Coordinate Systems and Graphs · Exercise 32 | Medium | |
| 99962 | The Rectangular Coordinate Systems and Graphs · Exercise 34 | Medium | |
| 99964 | The Rectangular Coordinate Systems and Graphs · Exercise 36 | Medium | |
| 99982 | The Rectangular Coordinate Systems and Graphs · Exercise 58 | Medium | |
| 99984 | The Rectangular Coordinate Systems and Graphs · Exercise 60 | Medium | |
| 99991 | The Rectangular Coordinate Systems and Graphs · Exercise 68 | Medium | |
| 99974 | The Rectangular Coordinate Systems and Graphs · Exercise 50 | Medium | |
| 99976 | The Rectangular Coordinate Systems and Graphs · Exercise 52 | Medium | |
| 99978 | The Rectangular Coordinate Systems and Graphs · Exercise 54 | Medium | |
| 99941 | The Rectangular Coordinate Systems and Graphs · Exercise 13 | Medium | |
| 99943 | The Rectangular Coordinate Systems and Graphs · Exercise 15 | Medium | |
| 99945 | The Rectangular Coordinate Systems and Graphs · Exercise 17 | Medium | |
| 99947 | The Rectangular Coordinate Systems and Graphs · Exercise 19 | Medium | |
| 99949 | The Rectangular Coordinate Systems and Graphs · Exercise 21 | Medium | |
| 99951 | The Rectangular Coordinate Systems and Graphs · Exercise 23 | Medium | |
| 99953 | The Rectangular Coordinate Systems and Graphs · Exercise 25 | Medium | |
| 99955 | The Rectangular Coordinate Systems and Graphs · Exercise 27 | Medium | |
| 99957 | The Rectangular Coordinate Systems and Graphs · Exercise 29 | Medium | |
| 99959 | The Rectangular Coordinate Systems and Graphs · Exercise 31 | Medium | |
| 99961 | The Rectangular Coordinate Systems and Graphs · Exercise 33 | Medium | |
| 99963 | The Rectangular Coordinate Systems and Graphs · Exercise 35 | Medium | |
| 99965 | The Rectangular Coordinate Systems and Graphs · Exercise 41 | Medium | |
| 99966 | The Rectangular Coordinate Systems and Graphs · Exercise 42 | Medium | |
| 99967 | The Rectangular Coordinate Systems and Graphs · Exercise 43 | Medium | |
| 99968 | The Rectangular Coordinate Systems and Graphs · Exercise 44 | Medium | |
| 99969 | The Rectangular Coordinate Systems and Graphs · Exercise 45 | Medium | |
| 99970 | The Rectangular Coordinate Systems and Graphs · Exercise 46 | Medium | |
| 99971 | The Rectangular Coordinate Systems and Graphs · Exercise 47 | Medium | |
| 99972 | The Rectangular Coordinate Systems and Graphs · Exercise 48 | Medium | |
| 99973 | The Rectangular Coordinate Systems and Graphs · Exercise 49 | Medium | |
| 99975 | The Rectangular Coordinate Systems and Graphs · Exercise 51 | Medium | |
| 99977 | The Rectangular Coordinate Systems and Graphs · Exercise 53 | Medium | |
| 99979 | The Rectangular Coordinate Systems and Graphs · Exercise 55 | Medium | |
| 99981 | The Rectangular Coordinate Systems and Graphs · Exercise 57 | Medium | |
| 99983 | The Rectangular Coordinate Systems and Graphs · Exercise 59 | Medium | |
| 99990 | The Rectangular Coordinate Systems and Graphs · Exercise 67 | Medium | |
| 99992 | The Rectangular Coordinate Systems and Graphs · Exercise 69 | Medium | |
| 99993 | The Rectangular Coordinate Systems and Graphs · Exercise 71 | Medium | |
| 114647 | Use the Rectangular Coordinate System · Exercise 35 | Medium | |