\begin{align*}y=6x-\dfrac{a}{2}\\[8pt]y-ax=2a\end{align*}

In the system of equations above, a is a constant. When the equations are graphed in the xy-plane, they form parallel lines. What is the positive difference between the y-intercepts of the two lines?
A)
B)
C)
D)

 


     

Leave a Reply