You can use the command-line input tool to create algebraic objects and/or geometric objects.[br]Variables can be created and used by algebraic or geometric objects to illustrate mathematical concepts.[br][br]For example, to draw a line algebraically by following these steps:[br]1) Declare a variable [b]m[/b] and assign it the value [b]5[/b] by typing [b]m = 5[/b] in the [b]Input[/b] command window.[br]2) Repeat the process for creating a variable [b]b[/b] and assigning it the value [b]10[/b] by typing [b]b = 10[/b].[br]3) Type [b]y = m * x + b[/b]. The line representing [b]y = 5x + 10[/b] shows up in the Geometry window.[br]4) Click on [b]m[/b] and [b]b[/b] in the [b]Algebra Pane[/b] to bring a slider onto the [b]Drawing Pad[/b]. Adjust the sliders to manipulate the equation of the line.[br][b][br]Alternate Method[/b]:[br]1) Start by typing: [b]y = m x + b[/b], you will need to reply yes to create sliders.[br]2) You can adjust the sliders with the [b]Move[/b] tool.