Draw a line from the origin to this point, then keep going.
Every point on the line you draw expresses the same ratio . . .
(2 blocks) : (3 minutes) .
A few other points on the line, which you could mark, are ...
(6, 4)
(9, 6)
(12, 8)
(15, 10)
(300, 200)
(10011, 6674)
At every point, the y-value is 2/3 of the x-value.
It means that the number of blocks that Mildred walks is always
2/3 of the number of minutes she spends walking, until she falls
panting and sweating to the pavement, or reaches the city limits
where there are no more blocks..