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