Write rule for the linear function in the table

The generic equation is:
 y-yo = m (x-xo)
 Where,
 m = (y2-y1) / (x2-x1)
 m = (0-1) / (4-3)
 m = (- 1) / (1)
 m = -1
 The ordered pair is:
 (xo, yo) = (4, 0)
 Substituting values:
 y-0 = -1 * (x-4)
 y = -x + 4
 
 y = -x + 4
 option 1