5. 5. let $A=\left(\begin{array}{ccc}1 & -3 & 2 1 0 & 1 & - 4 \\ 3& -5 & -9\end{array} ight]$ and $p=\left(\begin{array} {c}1 14 11-9\end{array} ight]$. Is the vector $p$ in the range of linear transformation $x ightarrow$ $A x$., why or why not b. How many rows and columns of must A have in order to define a mapping form the rule $R^{4}$ into $R^{5}$ by the rule $\mathrm{T}(\mathrm{x}=\mathrm{Ax} $ ?CS.SD. 126