Answer:
1. 6

2. Parallel 
Explanation:
To find the slope, you need to find the 
 between two points.
 between two points. 
 =
 = 
 
 
 = 
 
 
 = 6

If a graph has more than a point on the y-axis even though the x-axis remains the same, it means that it is a vertical line. Since Graph 1 has (-1) on the x-axis but there are two points on the y-axis, 4 & (-9), it is a vertical graph. Since Graph 2 has (11) on the x-axis but there are two points on the y-axis, (-2) & 6, it is also a vertical graph. Thus, both graphs are parallel.