Where do I even begin to graph these equations?

2. x = 7 sin t + sin 7t
y = 7 cos t + cos 7t

Question

Where do I even begin to graph these equations?

2.	x = 7 sin t + sin 7t
y = 7 cos t + cos 7t

luigi0210 · Answer

are these parametric equations?

anonymous · Answer

Yes @luigi0210

anonymous · Answer

We're allowed to use graphing calculators to solve, but every time I input the equations, the graphs won't show up. I don't get any error messages, so I don't know what I'm doing wrong.

luigi0210 · Answer

I think it might be because of your windows. what is your t-step set to?

anonymous · Answer

Is the t step the domain? My teacher hasn't really taught me how to use a graphing calculator properly, as I'm taking an online class.

luigi0210 · Answer

Yea, tell me what it's set as on your calculator

anonymous · Answer

I put it between -10 and 10

luigi0210 · Answer

Ah and there be your problem

luigi0210 · Answer

Here's a picture of the graph from 0 to 360 degrees:

.sam. · Answer

http://www.wolframalpha.com/input/?i=plot+x+%3D+7+sin+t+%2B+sin+7t%2C+y+%3D+7+cos+t+%2B+cos+7t+

luigi0210 · Answer

In radian mode it could be from 0 to 2Pi

luigi0210 · Answer

Your graph all depends on your t-step

anonymous · Answer

So I should have put it in radian mode? From now on if the domain isn't stated, should Make it 0 and 2pi?

luigi0210 · Answer

Yea, and yup.

anonymous · Answer

Thank you so much!

luigi0210 · Answer

Any time ^_^