The amount of interest earned on a savings account varies directly with the amount of money saved. I f $34 is earned on a balance of 850, identify the constant of variation and write an equation to represent the relationship.

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