graphics question
- To: mathgroup@smc.vnet.net
- Subject: [mg12414] graphics question
- From: Tom <toad@planet.eon.net>
- Date: Thu, 14 May 1998 11:15:24 -0400
Hello Mathematica users,
Here is an obscure question....but I hope someone can help me!!
Suppose I am using Mathematica to create test questions for my high
school math students. Here is a simple question.
Use the grid below to draw the graph of y = 2x - 4
Now, I can create a really nice grid (using simple grid, available from
Mathsource) and I can easily plot this graph to create the answer, but
is there any way to create a "blank" set of gridlines that will be
identical to the gridlines Mathematica will create for the plot? The
idea would be to provide students with a grid to put their answer on,
and have that match the output Mathematica will create.
I tried plotting the graph with a color of White, but for the observant,
you can see where the invisible line crosses the gridlines! (connect
the dots and you have the answer!)
Plot[2x-4, {x, -5,5}, GridLines->Automatic]
Plot[2x-4, {x, -5,5}, GridLines->Automatic, PlotStyle->{GrayLevel[1]}]
I would be looking for a solution that would work for more complicated
functions to graph as well, this was just a simple illustration.
I hope that was clear. Once again, is there a way to get a "grid" or a
set of gridlines that Mathematica would display in creating a certain
plot, but to "hold" the function being plotted.
I appreciate the help provided by this group, and I thank you in advance
for any assistance you might have.
Tom