Linear Functions · Try It 6

A new plant food was introduced to a young tree to test its effect on the height of the tree. The table shows the height of the tree, in feet, $x$ months since the measurements began. Write a linear function, $H\left(x\right),$ where $x$ is the number of months since the start of the experiment.

$$\begin{array}{cccccc}x& \text{0}& \text{2}& \text{4}& \text{8}& \text{12}\\ H\left(x\right)& \text{12.5}& \text{13.5}& \text{14.5}& \text{16.5}& \text{18.5}\end{array}$$

OpenStax, Precalculus 2e · §2.1 Linear Functions · Try It 6