Does anyone have software that can graph equations?

[coloredmath]

Could someone with software that will graph equations please graph these 5 equations on the same graph for me?
I want the window to be
y min = 0
y max = 20

x min=15
x max=15

and the equations are

y = -2x^2+20
y = -.3x^2+20
y = .3(x+5)^2+10
y = .03x^2+1
y= -.03x^2+4

Either send an img file of the graph to my email jubileeblaisdell@yahoo.com or send me a link to an uploaded img file of the graph.
1 minute ago - 3 days left to answer.
Additional Details
1 second ago

Oh, and I want the scale to be
y scale = 1
x scale = 1

Thank you!

 

[mmm4444bot]

Do you like getting SPAM?

Publishing your e-mail address on bulletin boards is a great way to get more!

If you want, you can edit that post and remove your e-mail address. You can also send your e-mail address through the Private Message system, if you ever want someone to have it.

I'm generating the graphs for you.

I'm hoping that the graphing itself is not the assignment. I'm providing them based on the assumption that you are supposed to have access to technology, but, for some reason, do not.

 

[mmm4444bot]

Double-click to enlarge.

[attachment=1:1rl7sphp]5Graphs.JPG[/attachment:1rl7sphp]

[attachment=0:1rl7sphp]Enlarged.JPG[/attachment:1rl7sphp]

 

[fasteddie65]

Rather than trying to find software that graphs, why not get a graphing calculator? It will be more portable than a computer and does the same tasks, if not more.