Answer:
[see answer below]
Step-by-step explanation:
Slope intercept form is:
[tex]y = mx + b\\\\m - \text{slope}\\\b - \text{y-intercept}[/tex]
We are given the slope (m) of 1/2 and the y-intercept (b) of -4.
[tex]y=mx+b\rightarrow \boxed{y=\frac{1}{2}x-4}[/tex]
Hope this helps.