Question

Find the slope of the line passing through the points $M(4,0)$ and $N(-2,-3)$.

Answer 1

$M\equiv (4,0)=(x_1,y_1)$
and $N\equiv (-2,-3)=(x_2,y_2)$
Then, slope of line $MN=\frac{y_1-y_2}{x_1-x_2}$
$=\frac{0-(-3)}{4-(-2)}$
$=\frac{3}{6}=\frac{1}{2}$