Question 1003257
Yes, y = x^2 is a function in terms of x.


Because it produces a valid output for all real x, its domain is the entire real number line, *[tex \large \mathbb{R}] (we can also use *[tex \large (-\infty, \infty)]).


For real x, x^2 is always non-negative, so its range is *[tex \large [0, \infty)].