Without Graphing, Determine Whether the Following Data Set Is Exactly

Multiple Choice

Without graphing, determine whether the following data set is exactly linear, approximately linear or nonlinear.
- $$\begin{array} { l | c c c c c c c c c } \text { Age (years) } & 18 & 23 & 20 & 26 & 29 & 16 & 25 & 20 & 32 \\\hline \text { Grade Point Average } & 2.5 & 3.0 & 2.7 & 3.2 & 3.9 & 2.0 & 3.5 & 3.1 & 3.6\end{array}$$

A) exactly linear
B) approximately linear
C) nonlinear