Answer
$$y=\frac{1}{2} x-3
.$$
Work Step by Step
We are told that the slope is $1/2$ and the y-intercept is $-3$.
The slope-intercept form of a line is $$y=mx+b$$
We plug in the given slope/intercept to obtain:
$$y=\frac{1}{2} x-3
.$$
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