Determine if Surjective (Onto) f(x)=x+2

Math
Function is said to be a surjection or onto if every element in the range is an image of at least one element of the domain. This means the range of must be all real numbers for the function to be surjective. If the range is not all real numbers, it means that there are elements in the range which are not images for any element from the domain.
Range should be all real numbers
The range is the set of all valid values. Use the graph to find the range.
Interval Notation:
Set-Builder Notation:
A function is said to be surjective or onto if every element of the range is an image of at least one element from the domain.
Surjective (Onto)
Determine if Surjective (Onto) f(x)=x+2

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