8.8 Slope equation: m=y2y1x2x1m = \frac{y_2-y_1}{x_2- x_1}

Slope equation: m=y2y1x2x1m = \frac{y_2-y_1}{x_2- x_1}

In this lesson, we will try to determine slope of a straight line with different methods, for example, rise-over-run and slope formula. We only need any two of the following things: a point on a line, the slope of the line or two points on the line, we can easily find the equation of the line by using this point-slope formula. However, if you have the graph of the line and only need to find the slop, using the rise-over-run is your best way to solve the question.


  • 4.
    Given two points of a line, determining the slope using m=(y2y1)/(x2x1)m = (y_2 - y_1) / (x_2 - x_1)
  • 5.
    Arrange the slopes from flattest to steepest.
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Slope equation: m=y2y1x2x1m = \frac{y_2-y_1}{x_2- x_1}

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