| After
step 4, three subgroups of the displaced gold beads can be identified.
These subgroups can be termed by the order in which the first bead of each
group was displaced: First=F, Second=S and Third=T. Click one of the subgroups in the list and click next 4 times. The areas for a given equation will be defined. Click the pythabacus and left click check button to position the beards against the left post. Counting from right to left: First click a bead at the count equal the length of a side of the blue square,CRA, Second click a bead at the count equal the length of a side of the red square,CRA, Third click a bead at the count equal the length of a side of the green square,CRA, Slowly move mouse over displaced gold beads and subgroups will be identified by text appearing below the Pythabacus. |
| |
| The order of the subgroups from left
to right will determine the mathematical character of
X" - BX + C and therefore the value of (Y). In the chart above, see the
formula X"-BX+C and Y written in terms of F, S and T. Where there are
no math signs between variables these variables or summed and where
parenthesis separate groups of variables the sums of the groups are
multiplied. Press the NEXT AREA button to cycle through examples of areas
corresponding to the terms of a Parabola X"+BX + C =Y. Click on the list
left of the graph area to see varying examples. Click Here to display webpage that displays areas as you generate terms of Parabolas using Pythabacus. |