Respuesta :

Answer:

[tex] - \frac{8}{7} [/tex]

Step-by-step explanation:

y2-y1 / x2-x1

x1 = 1

x2 =-6

y1= 1

y2= 9

[tex] \frac{9 - 1}{ - 6 - 1} [/tex]

=

[tex] \frac{8}{ - 7} [/tex]

=

[tex] - \frac{8}{7} [/tex]