### 4.2.3. Line

A line is entered as a linear equation in x and y or in parametric form. In both cases previously defined variables (e.g. numbers, points, vectors) can be used.

Note: You can enter a line’s name at the beginning of the input followed by a colon.

Examples:

· Type in g : 3x + 4y = 2 to enter line g as a linear equation.

· Define a parameter t (t = 3) before entering line g in parametric form using g: X = (-5, 5) + t (4, -3).

· At first, define the parameters m = 2 and b = -1. Then, you can enter the equation g: y = m x + b to get a line g in y-intercept-form.

Related Topics

4.2. Direct Input
xAxis and yAxis

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