How do you find the domain and range of F(x) = 4x -1?

1 Answer
Jan 9, 2018

Domain = (-oo, +oo)
Range = (-oo, +oo)

Explanation:

It's a linear function and by definition the domain is RR, there are no constraints.

Which means that for every x you put into f(x) = 4x-1 you can get any value in RR, so the range is also RR.

So we can write like this:
Domain = (-oo, +oo)
Range = (-oo, +oo)

You can check it in the graph below
graph{4x-1 [-10, 10, -5, 5]}