Answer:
I would say 25
Explanation:
I can show you a step by step process -
Step One: Identify two points on the line.
Step Two: Select one to be (x1, y1) and the other to be (x2, y2).
Step Three: Use the slope equation to calculate slope.
the best thing to use would be a graphing calculator - you can also use one online - sorry I couldn't give you a direct answer!!