Answer
Refer to the graph below.
Work Step by Step
Plot the point $(-\frac{1}{2}, 4)$.
Use the slope to plot another point.
A slope of $0$ means the line is horizontal.
All points on a horizontal line share the same y-coordinate.
Since $(-\frac{1}{2}, 4)$ is on the line, then the point $(3, 4)$ must also be on the line. Plot $(3 ,4)$.
Complete the graph by using a line to connect the two points.
(Refer to the graph in the answer part above.)