The data in this table represents a linear function. What is the slope of this line?

27

13

3

72

x y
2 7
5 16
7 22
9 28

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