斜率 (0,-3),(-4,2)

解答

斜率

(0, - 3), (- 4, 2)

m = - \frac{5}{4}

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}) = (0, - 3), (x_{2}, y_{2}) = (- 4, 2)

m = \frac{2 - ( - 3 )}{- 4 - 0}

整理后得

m = - \frac{5}{4}

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