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Help on Parametric Equations 
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#1
Feb1713, 03:28 PM

P: 42

If x = t, y = 2t, and y ≠ f(x), how to graph these equations?



#2
Feb1713, 03:38 PM

Mentor
P: 12,023

Plot a point for every t.
Alternatively, calculate y=f(x). 


#3
Feb1713, 03:39 PM

Sci Advisor
P: 6,102

Your condition y ≠ f(x) doesn't make sense. The definitions you give for x and y imply y = 2x, which is easily graphed.



#4
Feb1813, 01:04 AM

P: 42

Help on Parametric Equations



#5
Feb1813, 07:17 AM

P: 991

In some cases it is true that no function exists for y in terms of x. This would be because there are some values of x that pair up with more than one value for y. However, in the case at hand, it is trivial to find an f() such that y = f(x). 


#6
Feb1813, 03:45 PM

Sci Advisor
P: 6,102




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