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Learn how to write the slope formula from scratch and how to apply it to find the slope of a line from two points.
The slope of a line is a measure of its steepness. Mathematically, slope is calculated as "rise over run" (change in y divided by change in x).
Learn how to calculate the slope of a line from two points with this Khan Academy tutorial.
You got the general formula right, but you got confused on step 1 or 2. Slope is definitely delta y/delta x, but, to make it easier, it is also y₂ - y₁/x₂ - x₁. You can plug in the coordinate values as: (1 - 3) / (0 - (-1)) which is -2/1, or -2
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Learn about the slope-intercept form of linear equations with this Khan Academy video.
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Learn how to graph linear equations in slope-intercept form with Khan Academy's step-by-step guide.
Find the slope of the line that goes through the two points that are given to you.
If we had a simple formula like f (x) = x 2 − 4 x , then we could easily solve ∇ f = 0 to find that x = 2 minimizes f (x) . Or we could use gradient descent to get a numerical approximation, something like x ≈ 1.99999967 .