The temperature, in degrees Fahrenheit (°F) decreased from 68°F to 40°F in 4 hours. Which of the following integers represents the average change in temperature per hour?

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