.... is a function whose domain is the set of natural numbers and codomain is the set of real of numbers*1 pointSeries of real numbersfunction of real variableSequence of real numbersNone

Consider the relation R defined by the equation y = , where the domain and codomain are specified as follows: Domain: (-∞, ∞) Codomain: [0, ∞)The above relation is a function.

What does it mean for a function f:R→R to be surjective?1 pointFor every y in the codomain, there is an x in the domain such that f(x)=y.For every y in the codomain, there is no x in the domain such that f(x)=y.For every y in the codomain, there is exactly one x in the domain such that f(x)=y.For every x in the domain, there is exactly one y in the codomain such that f(x)=y.

Consider the following relation R defined by the equation:R = {(x, y) | y = 2x + 1}The above relation is a function with a domain and codomain specified as follows:Domain: {1, 2, 3, 4, 5}Codomain: {3, 5, 7, 9, 12}

how can all real numbers be a domain in a function

If R denotes the set of all real numbers then the function f : R → R defined f (x) = [x] isOne-one onlyOnto onlyBoth one-one and ontoNeither one-one nor onto