Solve each system of equations by graphing on a graphing calculator. \( \begin{array}{ll}\text { 6. } \begin{array}{l}y=5 x+1\end{array} & \text { 7. } y=9 x+2 \\ y=2 x+6 & y=-3 x-4\end{array} \)
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If you're using a graphing calculator, first input the equations for each system. For the first system, enter \(y = 5x + 1\) and \(y = 2x + 6\). When you produce the graph, you'll find the lines intersect at a point, which gives you the solution to the system. For the second system, input \(y = 9x + 2\) and \(y = -3x - 4\) in your graphing calculator. Again, graph both equations and look for their intersection point. The x and y coordinates of that intersection will represent the solution to this system of equations. Happy graphing!