(a)

To graph the equations \( y = 3 \) and \( x = -1 \), follow these steps:

1. Graph \( y = 3 \):

   • This is a horizontal line where the y-coordinate is always 3. It runs parallel to the x-axis and crosses the y-axis at (0, 3).

2. Graph \( x = -1 \):

   • This is a vertical line where the x-coordinate is always -1. It runs parallel to the y-axis and crosses the x-axis at (-1, 0).

Next, to find the solution of the system of equations \( y = 3 \) and \( x = -1 \):

The solution is the point where these two lines intersect.

• The intersection point is found by taking the values from both equations:
  • From \( y = 3 \), we get \( y \).
  • From \( x = -1 \), we get \( x \).

Thus, the solution is the point \( (-1, 3) \).

Summary:

1. Lines:

   • \( y = 3 \): horizontal line at y = 3.
   • \( x = -1 \): vertical line at x = -1.

2. Solution: The intersection point is \( (-1, 3) \).

You can plot these on a graph to visually confirm the intersection point.