How do you find the slope given (9,3),(19,-17)?

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Answer 1 · 2016-04-26T14:41:26

The slope $= - 2$ $=- 2$

$(9, 3) = x_{1}, y_{1}$ $(9 , 3) = color(blue)(x_1, y_1)$

$(19, - 17) = x_{2}, y_{2}$ $(19 , - 17) = color(blue)(x_2, y_2)$

The slope is calculated using formula:

Slope $= \frac{y_{2} - y_{1}}{x_{2} - x_{1}}$ $= color(blue)((y_2- y_1) / (x_2- x_1)$

$= \frac{- 17 - 3}{19 - 9}$ $= (-17 -3) / (19-9)$

$= \frac{- 20}{10}$ $= (-20 ) / (10)$

$= cancel(-20 ) / cancel(10)$

The slope $=- 2$