Equation of a linear function
Task
Create a linear function with sliders and visualize its parameters.
Explore the construction and learn how to visualize the slope and y-intercept of a linear function with GeoGebra Graphing Calculator. Then follow the instructions below that show you, how to do the same construction steps using the Algebra View.
Explore the construction...
Instructions
| 1. | | Enter the linear function into the Input Bar. Sliders for variables a and b will be created automatically. |
| 2. | | Create points and . |
| 3. | | Connect the created points with a segment by using the command . |
| 4. | | Create point and connect point C with point B using the command . |
| 5. | | Use the command visualize the y-intercept. |
| 6. | | Disable the  Visibility button next to the points A, B and C to hide them. |
| 7. | | Select the segment AB and deselect Show Label. |
| 8. | | Select the segment of the y-intercept, choose the  More button and select Settings. Change the caption of the segment to b. Repeat this for segment BC and change its caption to a.
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| 9. | | Enable the Visibility button next to the sliders to show them in the Graphics View. |
| 10. | | Change the color of the segments using the Style Bar to enhance your construction. |