Do the Graphs of the Equations Form Parallel Lines? (It $$\begin{array} { l } y = 9 - x \\y = 2 + x\end{array}$$

Multiple Choice

Do the graphs of the equations form parallel lines? (It is not necessary to graph them.) $$\begin{array} { l } y = 9 - x \\y = 2 + x\end{array}$$

A) yes
B) no
C) insufficient information