I just want to clarify. I have a problem that says: Draw each of the following vectors, then find its x and y components. d=(100m, 45° below the +x-axis. So this would be a line drawn in the fourth quadrant, that bisects the quadrant in half. But does it mean the bisecting line is 100m? I first assumed that it was the y-axis, but now I'm not so sure, and am thinking it's more the bisecting line is 100m instead of the y-axis.