To find the slope of a line that passes through two points, you can use the formula:
slope = (y2 - y1)/(x2 - x1)
In this case, the two points are (0,0) and (1/3, 7/3). Substituting these values into the formula, we get:
slope = (7/3 - 0)/(1/3 - 0)
slope = 7/3
Therefore, the slope of the line that passes through (0,0) and (1/3, 7/3) is 7/3.