Respuesta :

dmystro

Answer:

y= -2x + 9

Step-by-step explanation

y=mx + c                   where m is slope          c is the constant  and x and y are the coordinates

so y = 1 x=2 m = -4

so 1 = -4(2)+ c

1= -8 + c

c=9

so

y= -2x + 9