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The rule for the function is to assign to each real number a number that is 2 less than its value. Write down the expression of the function and calculate the value of .
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Note: This problem has dynamic elements. This means elements such as numbers and consequently the step-by-step solution and the final answer may change overtime. Therefore, there may be a difference between a problem that is published online and the same problem exported into a PDF document.
The expression for the function, f, is and
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is to assign to each real number a number that is 2 less than its value. Write down the expression of the function 
.
and
