# Thread: Help with parametric equation

1. ## Help with parametric equation

Consider a curve given by the parametric equations (t, t^2 - 1. t^3 + 1)
Find an equation of the normal plane at the point (0, -1, 1).

I know that t= 0

r'(t) = < 1, 2t, 3t^2>
r' (0) = <1 ,0 ,0>

What is the equation? is it just x = 0?

2. Originally Posted by khuezy
Consider a curve given by the parametric equations (t, t^2 - 1. t^3 + 1)
Find an equation of the normal plane at the point (0, -1, 1).

I know that t= 0

r'(t) = < 1, 2t, 3t^2>
r' (0) = <1 ,0 ,0>

What is the equation? is it just x = 0?
Yes.