Level:
Project ID:
2010008901
Source Problem:
Accepted:
0
Clonable:
1
Easy:
0
Given points \( K=[-3,1,5] \) and \( L=[1,-5,4] \), determine which of the following parametric equations does not define the ray \( KL \).
$\begin{aligned}
\mapsto KL\colon x&=-3+4t, \\
y&=1-6t, \\
z&=5-t,\ t\in(-\infty,0]
\end{aligned}$
$\begin{aligned}
\mapsto KL\colon x&=-3+4t, \\
y&=1-6t, \\
z&=5-t,\ t\in [ 0,\infty)
\end{aligned}$
$\begin{aligned}
\mapsto KL\colon x&=-3-8t, \\
y&=1+12t, \\
z&=5+2t,\ t\in(-\infty,0]
\end{aligned}$
$\begin{aligned}
\mapsto KL\colon x&=-3+8t, \\
y&=1-12t, \\
z&=5-2t,\ t\in [ 0,\infty)
\end{aligned}$