How to get Wolfram Alpha to draw two different plots on the same graph?

Question

I want to draw this line:

And this circle, radius 25:

On the same graph.

No matter what combination I use, I can't get them overlaid on the same graph.

Is there any way to do this? I will also consider other web apps that may be able to do this.

phwd · Answer 1 · 2012-01-18 16:05:16Z

up vote 2 down vote

x= -2 (-5 + t) (1)
y= 5 + t (2)

t = y - 5;

Substitute into (1)

y = -(1/2)x + 10

ContourPlot[x^2 + y^2 == 25 , y == -(1/2)x + 10]

You can also try the reverse and change to parametric. That could be left as an exercise.

answered Jan 18 '12 at 16:05

phwd♦
14k1455154

This works also in Google search: enter (25-x^2)^0.5,-(25-x^2)^0.5 ,-(1/2)x+10 in the search box and zoom out. – Itamar Jan 18 '12 at 16:20

1 Answer