Barbara knit a total of 4 centimeters of scarf over 2 nights. How many nights will Barbara have to spend knitting in order to knit a total of 10 centimeters of scarf? Solve using unit rates.

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