Answer:
The correct option is C) -2.
Explanation:
Consider the provided graph.
Two lines are said to be parallel if they never meet and remain the same distance apart.
The slope of two parallel lines are always same.
For two parallel lines: If the slope of one line is
and the slope of another line is
then.
Now consider the provided graph it is given that two lines are parallel.
The green line has a slope of -2. Therefore the slope of red line must be -2.
Thus, the correct option is C) -2.