Question

Calculate the slope between the line that passes through

(3,7) and (7, 2).

A. 5
B. -5/4
C. -4/5
D. -4

Answer 1

`(\stackrel{x_1}{3}~,~\stackrel{y_1}{7})\qquad (\stackrel{x_2}{7}~,~\stackrel{y_2}{2}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{2}-\stackrel{y1}{7}}}{\underset{run} {\underset{x_2}{7}-\underset{x_1}{3}}} \implies {\Large \begin{array}{llll} \cfrac{-5}{4} \end{array}}`