**Which of the following function is identical to function, f(x)=x². Select the correct option.**

**What is a domain of a function? Select the correct option.**

**What is called as a subset of codomain that the function actually maps to? Select the correct option.**

**g : R²→R Find the range of the following function.**

**Evaluate the function f(x, y) for (2,3)
f(x,y) = (x+y, y-x, yx) Select the correct option.**