Correlations with centicubes
Geogebra can be used to find correlations, This is called regression analysis. This video discloses, how to use this function in GeoGebra.
Study of correlations in a “Trappepyramide”
You can build a model of a staircase pyramid in centicubes. The first three steps of the construction is shown in the drawing.
The steps 4 get the pyramid added another layer.
- How many centicubes be used for the layer 4?
- Create a table of the spreadsheet showing, how many there are in centicubes layer 1 to 6.
- View in a coordinate relationship between the layer number, and number of centicubes in the layer and locate the function regulation.
- How many centicubes, the very used to build the pyramid of steps 3.
- Expand the table so that it also shows the relationship between the step number and the total number centicubes, to be used.
- Draw the graph and check function properly.