Question: how to find the slope of a line joining two points?
Answer: Hence, the slope (m) of a non-vertical line passing through the points P (x1, y1) and Q (x2, y2) is given by.
slope = m = y2−y1x2−x1.
Find the slope of the line passing through the points M (-2, 3) and N (2, 7).
Solution: