Respuesta:
[tex]m = \frac{ - 6 - 9}{6 - ( - 8)} = \frac{ - 15}{6 + 8} = \frac{ - 15}{14} [/tex]
[tex]9 = - \frac{15}{14} \times ( - 8) + n \\ 9 = \frac{60}{7} + n \\ 9 - \frac{60}{7} = n \\ \frac{63}{7} - \frac{60}{7} = n \\ \frac{3}{7} = n[/tex]
[tex]y = - \frac{14}{15} x + \frac{3}{7} [/tex]
