Ditch Digging Problem Doug Upp can dig a ditch in 3 hours. His brother Phil could dig the same ditch in 5 hours. How long would it take to dig the ditch if both work together?

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