Can someone please help? Can someone give me like a good website to understand parametric equations and Cartesian equations as well of Circles, hyperbolas, ellipses, rays, line segments, etc.

Question

theeric · Answer

Hi! For now, I'll show the link to Wikipedia, where it shows some shapes.

I can't spend a whole lot of time explaining things right now. But, in a nutshell, you're using one variable (usually written as $t$) to find what an $x$ is and what a $y$ is, and then you find that $(x,\ y)$ point and plot it, because is is the point produced using $t$.

I guess you've seen this, but you get $x$ and $y$ from $t$ because $x$ and $y$ are functions of $t$. They are $x(t)$ and $y(t)$. Using just one $t$, you get an $(x,\ y)$ pair! :) That's what you plot.