Based on your description of the line plotted on the coordinate plane, it is indicated that the line is sloping upward from left to right. This means that as you move from left to right along the line, the y-values increase as the x-values increase.
The slope of a line is defined as the change in the y-values (rise) divided by the change in the x-values (run). Since the line is rising as you move from left to right, the slope is positive.
Therefore, the slope of the line is positive.