Question

Write y=x-4 in standard form (Ax+By=C)

Answer 1

if by standard form you mean
y=mx+b
your equation is already in standard form gradient
m=1
y intercept
b=−4

Answer 2

just subtract that x to the other side, and you get....

- x + y = -4

this is pretty standard, but sometimes people want A to be postitive, so you could multiply everything by -1 and get.....

x - y = 4 which is the same thing, just a little less negative

Answer 3

Standard form: ax +by = c
move x to the other side.

Answer 4

x-y=4