斜率 (1,-5),(-5,5)

解答

斜率

(1, - 5), (- 5, 5)

m = - \frac{5}{3}

求解步骤

两点之间的斜率: 斜率

= \frac{y _{2} - y _{1}}{x _{2} - x _{1}}

(x_{1}, y_{1}) = (1, - 5), (x_{2}, y_{2}) = (- 5, 5)

m = \frac{5 - ( - 5 )}{- 5 - 1}

整理后得

m = - \frac{5}{3}

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