What is the slope of a line containing the points (1, 13) and (-3, 6) [(1, 3) and (-3, 6) বিন্দুগামী সরলরেখার ঢাল কত?]

Answer: 
1.75
What is the slope of a line containing the points (1, 13) and (-3, 6) [(1, 3) and (-3, 6) বিন্দুগামী সরলরেখার ঢাল কত?]