If given the equation of a line, or two points on the line we can try to find the slope of a line from two points. This is often the most efficient way to calculate slope, and can be done with a simple formula to find rise over run. Finding the slope of a line from two points requires us to know the definition of slope. and how to plot points.
Sample Problems (4)
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Find the slope of the line that contains the points (-3,2) and (4,1).
Find the value of y if the slope of the line that contains (2,3) and (4,y) is 5⁄2.
Find the slope of the line that contains (-3,4) and (2,4).
Find the slope of the line that contains (2,-1) and (2,3).