Solve the Problem $f$ Is Increasing or Decreasing $\mathrm { f }$

question 55

Multiple Choice

Solve the problem.
-The following data set gives the average home value, in dollars, for a city at 5 -year intervals.


Determine where $f$ is increasing or decreasing.

• A) \(\mathrm { f }\) is constant for the given \(\mathrm { x }\)-values.
• B) \(f\) is increasing until 1980, then decreasing for remainder of \(x\)-values.
• C) \(\mathrm { f }\) is decreasing for the given \(x\)-values.
• D) \(f\) is increasing for the given \(x\)-values.