Question

-y-4=4x put in y=mx+b

Answer 1

$-y-4=4x\\ \\ -y=4x+4\\ \\ y=-4x-4$

First part of the problem:

-y - 4 = 4x

   + 4   + 4

-y + 0 = 4x + 4

     -y = 4x + 4

Hope this helps!