Recent content by rickonstark999

Thank you. That is what I was asking in the sentence after that.

From my parametrisations, t can be both positive and negative. Would you say that is correct?

You would have a sideways parabola where y can be any real number, but x cannot be below 0 because you are squaring.

I suppose so? The question doesn't specify so I am not sure.

Hi, so I am learning how to parametrise curves. For the curve y^2=16x, I have said let x=t^2. Then, we can say y^2=16t^2, so that we can take the root of this and get y=4t. What I wanted to ask was do we have to say "plus or minus" in front of the 4t, or do we just leave it as positive to get...