gradien garis melalui titik (2,-6) dan (-2,4) adalah

(x1,y1) = (2,-6)
(x2,y2) = (-2,4)
[tex]m= \frac{y2-y1}{x2-x1} \\ \\ = \frac{4-(-6)}{-2-2} \\ \\ = \frac{10}{-4} \\ \\ =-\frac{5}{2}[/tex]