Question 1198751
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(a)  The domain is the set of all real numbers (the entire number line).


     The range is the set of all real numbers less than or equal to 5.

         <U>Explanation</U>.  It is because the function subtracts positive (non-negative) numbers from 5.




(b)  The domain is the set of all real numbers (the entire number line).


     The range is the set of all real numbers, too.
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Solved and answered, in full.