Mathematics

Problem

State the formula for the slope

m

of the line joining the points

(x_1,y_1)

and

(x_2,y_2)

where

x_1 \neq x_2

. a)

\dfrac{x_2 - x_1}{y_2 - y_1}

\dfrac{\lvert y_2- y_1\rvert}{\lvert x_2- x_1\rvert}

\dfrac{y_2 - y_1}{x_2 - x_1}

\dfrac{y_1 - y_2}{x_2 - x_1}