Answer:
[tex]y = - \frac{7}{9} x + \frac{40}{9} [/tex]
Step-by-step explanation:
[tex]m = \frac{ - 1 - 6}{7 - ( - 2)} = - \frac{7}{9} [/tex]
[tex] - 1 = - \frac{7}{9} (7) + b[/tex]
[tex] - \frac{9}{9} = - \frac{49}{9} + b[/tex]
[tex]b = \frac{40}{9} [/tex]
[tex]y = - \frac{7}{9} x + \frac{40}{9} [/tex]