We sometimes call it gradient. Lets look at an example. Where and are the sample means and calculated by average x values and average y values.
Learn how to write the slope formula from scratch and how to apply it to find the slope of a line from two points.
Starting with the point on the left sketch a right triangle going from the first point to the second point. We sometimes call it gradient. Find m at the point 9 3. In order to use this formula to find the slope of a curve select two points to plug into the formula.