$Assessment$ $Post$ Assessment $2irection$ Choose the letter of the best answer. Write the chosen letter $ona$ separate sheet of paper. 1. Which of the following is NOT a system of linear equations in two variables? - A. $\left(x-y+5$ $c$ $ \begin{cases} 4x-8y=12 \\ 2x-\dfrac {1} {3}y=-12 \end{cases} $ $\left(-3x^{2}=0$ $B$ $ \begin{cases} 3x-y=5 \\ x-11y=-1 \end{cases} $ D. $ \begin{cases} -4y=5 \\ \dfrac {3^{x}} {5}x-4y=7 \end{cases} $ 2. What system of linear equations in two variables is equivalent $t0 \begin{cases} y=\dfrac {1} {2}x-4 \\ y=4x-5 \end{cases} 7$ $A \begin{cases} = \\ 2y \\ x_{4}\bar{x} -y=5 \end{cases} ^{8}$ $C$ $ \begin{cases} x-y=8 \\ 4x-2y=5 \end{cases} $ - B. $ \begin{cases} 4x-y=-2 \\ x+2y=-5 \end{cases} $ D. $ \begin{cases} x+2y=-8 \\ x-4y=-5 \end{cases} $ $14$