Question 15 The transformation $\left[\begin{array}{1}x \\y\end{array} ight] \mapsto(x+y)\left[\begin{array}{1}1 1\end{array} ight]$ is a linear transformation a non-linear transformation that sends lines to lines none of the above Question 16 The transformation $T(\vec{x})=\/\vec{x}\\$ is a linear transformation a non-linear transformation that sends lines to lines none of the above Question 17 The transformation $\left[\begin{array}{c}x_{1}x_{2} \boldsymbol{r}_{n} \end{array} ight] \mapsto\left[\begin{array} {cccccc}1.2 & -5.7 & \frac{\pi}{2} & 89 & -77 Omega & . \sqrt{12} & \mathbf{1} & \underline{17} & \underline{1+\sqrt{5}}\end{array} ight]\left|\begin{array}{1}x_{1} \ X_{2} \boldsymbol{r}_{n}\end{array} ight]$ is CS.VS. 1405