CPM Homework Help : GB8I Problem 2-21

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

Hint:

Substitute $1$ in for $x$ and evaluate the function.

More Help:

$f(1)=\frac{1}{1-1}$

$f(1)=\frac{1}{0}$

What does it mean when there is a zero in the denominator?

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.