Verified Answer :

meerkat18

we are asked to write a rule so that for every input, the output is an even number. Even numbers are numbers with end-numbers of 0,2,4,6,8 while odd numbers are ending in digits 1,3,5,7. In this case, to get an even number we can multiply any x number by any even number. Try applying this rule to verify

Answer with explanation:

A Rule which expresses that for every input, the output is an even number can be written in many ways

f(x)=2 x , where x is any Integer.

f(n)=4n,  where n is any Integer.

f(s)=6s,  where s is any Integer.

f(k)=8k,  where k is any Integer.

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There can be many more expressions.

In these expressions,if you replace,x ,n,s and ,k by any integer , the result will be an Even Number(Positive Even Number or Negative Even Number).

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