Anybody good with parametric curves

Question

steve816 · Answer

I have a question: On my homework, it says that I have to compute the left most point of the parametric. I do know that in order to find the left most point, you have to set dx/dt equal to zero and find t. However, how do I know for sure that it is the left most and not the right most?

satellite73 · Answer

if you set $\frac{dy}{dx}=0$ you find the value of $t$ here the curve has a horizontal tangent, not the left or right endpoint

satellite73 · Answer

finding the left or right endpoint is probably a matter of thinking about the domain of $x$ in terms of $t$ 
for example, if $x=t^2+1$ then the least $x$ can be is $1$

Falconmaster · Answer

^thats smart sounding

XxLiveGamerxX · Answer

I will survive

Falconmaster · Answer

me to

steve816 · Answer

Ok, I think I got it now, thanks satellite.