Herb has sold 93, 30, 138 and 61 copiers in the last
four months, respectively. how many copiers will he need
to sell this month to maintain an average of at least
79 sales per month?

Identify the function that contains the data in the following table: x     -2         0         2         3         5     f(x)     5         3         1         2         4     possible answers: f(x) = |x| + 1 f(x) = |x - 2| f(x) = |x - 2| - 1 f(x) = |x - 2| + 1