Step 1: Create an equation using sliders[br][list][*]Click on the slider tool in the toolbar. [br][/*][/list][img width=44,height=49]https://lh6.googleusercontent.com/qUyWsNxc_feWa3eCZWmXXHKbadoe2XNVsSTfQDUXAA1zpL1JsCEICTD8AQ-NK2FcDjMza-YDGMy-xAVjDp7E1eAuJIhXFPnPP4ShgLJV2XY-k03rhkx51XtVCxGLgn5naEDUZMYC[/img][br][list][*]Dynamic Equation:[br][/*][list][*]Create two sliders (named a and b) with the following settings:[br][/*][/list][/list] Number, Min: -5, Max: 5, Increment: 0.1[br][img width=282,height=174]https://lh4.googleusercontent.com/lfVBSTsbpqPDDYWZbzK6ZhijIxJgtDuPVBcNII7GCyMBAz9adVCGRVZkO9oe942dniwCqg_3WlHrUmi_NO2gBP1MWi_VhWacOgpYv1I4aUy-uTIP5jiZmF9ZfRnieD2JxJpaTB-Z[/img][br][list][*]In Input, Write equation y = a*x + b[br][/*][/list][img width=152,height=35]https://lh5.googleusercontent.com/KcxO6RL5qgM1tE5fwxPsvoRGrtPPQRW-lJWroWS4VdNM-lqr9Drv4KcyrinZ57mrwq-KecerDKJXsXki-26n41CLlTpX4bM8RfMfzQycdZ9NcuoJlI1RloUWif9bBYC0iDfRHTUu[/img][br][list][*]Move sliders to see how Equation changes[br][/*][/list]

Step 2: Using Dynamic Text[list][*]Click on the slider tool to open the menu with the textbox and choose the Text feature[br][/*][/list][img width=106,height=158]https://lh5.googleusercontent.com/ZF9MhrAjaP77jTfQJ7ybf1bY_0lAhW0-M8UM0L4Smgukc_5TjbaMaFYbJmMq9MkVszoHYQ6Y7QsblSoX9fyTfsDw88wPHNrFV2BCPgPElElx0QzmE_AHFByVehVuSz5ngSVS2Xap[/img][br][list][*]Click anywhere in the graphics view to create a textbox.[br][/*][*]Click on the "Advanced"  arrow to open up the advanced menu. [br][/*][/list][img width=263,height=297]https://lh6.googleusercontent.com/d_tp5Weh9xP0bZKj9kbNtJfqy7NJI3K9k6KVWJPIGMJ8pUQ86VTwCgoKKrgZJkYO9qS6siTFzVnfJfJQrLRNiLkVIkwCIv8siJx2RWSRbwy7aiLwLQ5TMVRUV4fboGMl17fqyE4m[/img][br][list][*]Select the GeoGebra icon [img width=36,height=31]https://lh6.googleusercontent.com/vQmX5Qe1D1w71pl0rTQN4eBnGILq-31NG8sf8E8aVO1eHFn90-hfV1RmTLMupxrCkHcIP-s47tvzTA34uRKFfQqRy_Wg5iIWFOiY9js0OfjnJMLjwM1rt3OXiE6lvN3cC5-P_sew[/img] to see the objects you have created in GeoGebra.[br][/*][/list][img width=267,height=173]https://lh4.googleusercontent.com/DgBsZ31Wj6nVZN_TfHLiDmTyf60zHZoW0od2s4CF5COAjYB1JuZPsc0YTgE0ebOB3V9_1stjwgJAbTkAGaGQiJipasQVvuNZrYZ5930aB3QJ2BkdJpD2ycTCDm2EyjLIQi_agrvL[/img][br][list][*]In the advanced menu, you should see an (empty box), the two sliders created (a and b), and the function (f). Click on the function, f, to create a dynamic textbox that will display your equation.[br][/*][/list][img width=226,height=255]https://lh6.googleusercontent.com/mhJc3-K-TGKq1eqgnE_kvWphmPoyimAlxsDVQPZpKZRZUMm91pBL6n34itwmfeJJO2fa1s3NVNkvm3Y_noahYxSpjVN4on25nhh_CS0-XxJp8pygrlf0Q5giwuPgpdoAVwHcp-di[/img][br][list][*]Once you select the f, you will see a box appear above with an f in it. Press "OK" to create the textbox.[br][/*][*]Move the sliders to see how the textbox equation changes with the line. [br][/*][/list]

Step 3: Creating a Checkbox[br][br][list][*]Click on the slider tool to open the menu with the checkbox tool and choose Check Box feature. [br][/*][/list][img width=95,height=205]https://lh5.googleusercontent.com/4m2YMaSt-AMT20UK-_f_arhpRPm3S25aONpjW5-UC1Xpv37qmRCPjb3jocf03lCDooydGDU9yA43LKHrVCbzyQ5UGZdjWI1Xrq1SO1cuB_5eT7hKLndpStJCbdZmuYGuEnR0SbJB[/img][br][list][*]Click anywhere on the screen to create the check box. [br][/*][*]Call the check box "Show Equation." Then, in the drop down menu, choose Text text1: ""+ f +"" from the menu.[br][/*][/list][img width=223,height=257]https://lh6.googleusercontent.com/_O6h-myPZDkJ4nZNA9QDUZii2AgTNSwmeb-gStyS5fUiHnHsyQqE9JUs1Co8O97wpcG7XVhmfzC5SMsLerQBwLpI2dAiT1tMCPwLUQebcPxUgMEwRCmUjUuQDSE6oZytku2ZQSkK[/img][br][list][*]Press "OK" to create the check box. [br][/*][*]Uncheck and check the box to see how the equation disappears or re-appears. [br][/*][/list]