Level:
Project ID:
2010008903
Source Problem:
Accepted:
0
Clonable:
1
Easy:
0
Given points \( P=[3;-4;1] \) and \( Q=[-1;3;6] \), determine which of the following parametric equations defines the ray \( QP\).
$\begin{aligned}
\mapsto QP\colon x&=-1-4t, \\
y&=3+7t, \\
z&=6+5t;\ t\in (-\infty;0]
\end{aligned}$
$\begin{aligned}
\mapsto QP\colon x&=3-4t, \\
y&=-4+7t, \\
z&=1+5t;\ t\in[ -1;\infty)
\end{aligned}$
$\begin{aligned}
\mapsto QP\colon x&=3+4t, \\
y&=-4-7t, \\
z&=1-5t;\ t\in[ 0;\infty)
\end{aligned}$
$\begin{aligned}
\mapsto QP\colon x&=-1+4t, \\
y&=3-7t, \\
z&=6-5t;\ t\in (-\infty;1]
\end{aligned}$