Question 11 The plane given in vector form as $\vec{x}=t\left[\begin{array}{1}1 W 1. O\end{array} ight]+s\left[\begin{array}{1}0 11 1\end{array} ight]+\left[\begin{array}{1}1 \\ 2 1\end{array} ight]$ is a subspace. True False Question 12 The set $\mathcal{S} \subseteq \mathbb{R}^{2}$, where $\mathcal{S}$ is the complete solution to $x-y=1$ is a subspace. True False Question 13 The line given in vector form as $\vec{x}=t\left[\begin{array}{1}2 | 4 6\end{array} ight]+\left[\begin{array}{1}1 1 2 1 3\end{array} ight]$ is a subspace. True False CS.VS. 1403|