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1-4.

"Find " means to find the output of function for an input of x = 3. For the function  , find each of the following values. Homework Help ✎

  1. Find . (This means find the output of the function when x = 4.)

    Substitute 4 for each x.

    Simplify.

  2. Find when . (This means find the input that gives an output of 1.)

    Substitute 1 for f(x).

    Solve for x (multiply both sides by x − 2).

    x = 3