the parabola represents the graph of the quadratic function f (x) = 2x^2 + 6x + 4.5. which of the following describes the domain of this function?

Answer 1

The function $f(x)=2x^2+6x+4.5$ is a quadratic function. Quadratic functions are defined for all real numbers, which means their domain is all real numbers.

Therefore, the domain of the function $f(x)$ can be described as:

$$\text{Domain: }(-\mathrm{\infty },\mathrm{\infty })$$