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Home > CCA > Chapter 2 > Lesson 2.1.2 > Problem 2-23


Find the output for the relation with the given input. If there is no possible output for the given input, explain why not.

Substitute 1 for and evaluate. Does your answer make sense?

Function Machine. Input: x = 1, Rule: f of x equals x divided by the difference of x minus 1, Output: f of 1 equals question mark.