Question

Find the domain of f(x) =-2x+3

Answer 1

Domain = {x ∈ ℝ}

=
`(-\infty,\infty)`

Explanation:

The function:

• f(x) = -2x + 3

has a domain (set of inputs that produce a real output) of all real numbers because it is a first-degree polynomial, which is an elementary function that is always continuous.

In simpler terms, we can input any real x-value (denoted by ℝ) into the function and get an output (y-value).