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Find the slope of the line containing the points (-9,3) & (6,-12)

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Step-by-step explanation

  • Calculate the slope with two given coordinate points by using rise over run.


m = (y_2 - y_1)/(x_2 - x_1)

Substitute the coordinate points value in the formula.


m = (3 - ( - 12))/( - 9 - 6) \\ m = (3 + 12)/( - 15) \\ m = (15)/( - 15) \\ m = - 1

From the slope-intercept form y = mx+b where m = slope and b = y-intercept. Therefore slope = m = -1

Answer


\large \boxed{m = - 1}

User Akshat Thakar
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