1. | In the Graphs application, tap Tools and go to Actions > Text. |
2. | Tap the work area to place the text box and display the keyboard. |
3. | Type an "x=" or "y=" equation, such as x=sin(y)*2, or type an inequality, such as x<2*sin(y), and tap ENTER. |
4. | Drag the text object to either axis to graph the equation. |