Is there a picture? If so, can you please add it? Without seeing it, the slope would be 1/2 because it will always be the exact opposite graph as \frac{-1}{2}
Hope this helps.
The line below are parallel so they have same slopes
If the green line has a slope of -1/2, the slope of the red line is also - 1/2
Answer
-1/2
6.5m questions
8.7m answers