10-3-18

Inserting Data into an eActivity

(4)Tap [Insert] and then [Geometry Link].• This inserts a Geometry Link row in the next line.

Geometry Link row

Symbol

(5)Tap the Geometry window to make it active.

(6)Tap one side of the triangle to select it, and then drag it to the link symbol in the eActivity window.

This inputs the equation of the line that represents the side of the triangle into the link.

Modifying the equation in the Geometry Link row and pressing causes a corresponding change in the Geometry window (lower right screenshot).

The example below shows how the isosceles triangle ABC (CA = BC) changes when the equation in the Geometry Link row is changed from y = 1.91x + 0.983 to y = x + 2.

• Drag the stylus across

• Input x + 2.

1.91x + 0.983.

• Press .

Tip

Dragging a line or figure from the Geometry window to a text row or calculation row in an eActivity also converts the figure to its value or equation. In this case, however, data in the text row or calculation row is not interlinked with the Geometry window figure.

Pressing after changing data in a Geometry Link updates the corresponding figure in the Geometry window.

Changing the figure in the Geometry window will cause the linked data in an eActivity to update accordingly.

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