Consider three vectors $x=\begin{bmatrix}1\\2 \end{bmatrix}, y=\begin{bmatrix}4\\8 \end{bmatrix},z=\begin{bmatrix}3\\1 \end{bmatrix}$. Which of the folowing statements is true
- $x$ and $y$ are linearly independent
- $x$ and $y$ are linearly dependent
- $x$ and $z$ are linearly dependent
- $y$ and $z$ are linearly dependent