Consider the system of equations below.  

$3y-4x=-1\\9y+2x=4$

1. Solve this system algebraically.

   Hint (a):

   Multiply the first equation by $−3$, then use the Elimination Method.
   Then substitute the value found for $x$ into one of the equations and solve for $y$.

2. Where do the graphs intersect?

   Hint (b):

   The graphs intersect at points whose coordinates are the solution to both equations.

3. Explain the relationship between parts (a) and (b).

   Hint (c):

   See part (b).