Understanding ParametricPlot in Mathematica: Deciphering Parameters and Ranges

[flyingpig]

Homework Statement

On Mathematica.

Let's say I want to plot

y = 4 - x

x = 6, x = 0

So a parametric equation would be

y = 4 - t

x = t

So I tried ParametricPlot[{y = 4 -t, x = t},{t,0,6}]

But the range (the t values) aer only expanding the y-values.

 

[Mark44]

Homework Statement

On Mathematica.

Let's say I want to plot

y = 4 - x

x = 6, x = 0

As you show it here, the parametric plot would consist of two points: (6, -2) and (0, 4). Is that what you had in mind?

So a parametric equation would be

y = 4 - t

x = t

So I tried ParametricPlot[{y = 4 -t, x = t},{t,0,6}]

But the range (the t values) aer only expanding the y-values.

 

[flyingpig]

No I want to plot the line x = 6 and x = 0, two vertical lines.

 

[Avijeet]

I think this is what you want

ParametricPlot[{{4 - t, t}, {4, t}, {6, t}}, {t, -6, 6}]

 

[Mark44]

No I want to plot the line x = 6 and x = 0, two vertical lines.

In that case, I don't think you want to do a parametric plot. What you want to plot are three lines: y = 4 - x, x = 0, and x = 6. For a set of parametric equations, you would have x as a function of the parameter, and y as another (or possibly the same)function of the same parameter, and the graph would be the set of (x, y) values.

It's possible I'm not understanding what you're trying to do.

 

[RTW69]

To plot x=6

ParametricPlot[{6, t}, {t, -10, 10}, PlotRange -> 10]

 

[flyingpig]

can you tell me each of the parameters within the code? Like what do they mean?

ParametricPlot[f...,{range}]...?