Through (-1,-4) parallel to y=-x -3
write the slope intercept form of the equation of the line described

  y - y₁ = m(x - x₁)
y - (-4) = 1(x - (-1))
   y + 4 = 1(x + 1)
   y + 4 = 1(x) + 1(1)
   y + 4 = -x + 1
      - 4          - 4
         y = -x - 3