Answer:
Line D.
1. These linear equations will be in the form y=mx+b. y is the y coordinate, m is the slope (rise/run), x is the x coordinate, and b is the y-intercept. The y intercept is where the y point is when x=0.
2. Plug in the slope and y-intercept of y=mx+b. If you put 0 for x, you'll be left with y=-3. This means that the only lines that can be the linear equation are either a,b, or d.
3. There's two ways to tell which line it is, one is algebraically, and one is visually. You can tell which line has a slope of 4/1, or you can plug in x coordinates to plot other points, creating the line.