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formulas for slope. If you know the rise and run of a line you can calculate its slope using the slope formula. It is the ratio of the change in the y-axis to the change in the x-axis.
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Its quite new but I guarantee you. The subscripts are only used to identify the two points. This is a sensible equation that can also be named as the slope-intercept form.
You cant learn about linear equations without learning about slope.
It is the ratio of the change in the y-axis to the change in the x-axis. Slope change in y over the change in x. You can pick any two points on a line to calculate the slope. 3 x i y i a x i 2 which you can solve for a to obtain the estimator for the slope.
