Question

Find the slope of the line passing through the points $C(3,5)$ and $D(-2,-3)$

Answer 1

$C\equiv (3,5)=(x_1,y_1)$
and $D\equiv (-2,-3)=(x_2,y_2)$
Then, Slope of line $CD=\frac{y_1-y_2}{x_1-x_2}$
$=\frac{5-(-3)}{3-(-2)}$
$=\frac{5+3}{3+2}=\frac{8}{5}$