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

1 Answer
May 31, 2017

Answer:

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)#.