How do you find the domain of f(x)=-2x+3?

1 Answer
May 31, 2017

See below.

Explanation:

There becomes a restriction in the domain if there is an x in the denominator of a fraction, or there is a square root, etc., such that a zero-bound exists.

In this case, no matter what x is, y will always be real. For example, as x approaches infinity, y approaches negative infinity. As x approaches 0, the range approaches 3.

Thus, the domain spans from (-oo,oo).