Slope of the line $$$y = \frac{x}{2} + 4$$$

The slope of the line $$$y = m x + b$$$ equals $$$m$$$.

Write the line in the form $$$y = m x + b$$$: $$$y = \frac{x}{2} + 4$$$.

So, the slope is $$$m = \frac{1}{2}$$$.

The slope of the line is $$$m = \frac{1}{2} = 0.5$$$A.