Question

How do I find the domain of `y=-3x+1`?

Answer 1

The domain is all real numbers. `D: {x: (x=R)}`

Domain is the set of all possible `x` values for a function. The function `y=-3x+1` is a line graphed below:
graph{-3x+1 [-10, 10, -5, 5]}

The line extends forever in both directions and is uninterrupted.