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how to determine slope when given two points. This lesson is geared to visual learners as I use a graph at the start. Begin with the first point the point that is the farthest left on the graph and count up until you reach the y-coordinate of the second point.
Starting with the point on the left sketch a right triangle going from the first point to the second point. Simplify the formula to get a slope of ⅓. Locate two points on the line whose coordinates are integers.
Identify the coordinates x₁y₁andx₂y₂.
Pick two points on the line and label their coordinates. There are three steps in calculating the slope of a straight line when you are not given its equation. Starting with the point on the left sketch a right triangle going from the first point to the second point. We will use the formula to calculate the slope of the line passing through the points 38 and -2 10.