Answer:
5/3
Step-by-step explanation:
The slope of a line is the ratio of "rise" (change in y-coordinate) to "run" (change in x-coordinate).
The change in y-coordinate from E to F is from 2 to 7, a change of 7-2 = 5.
The change in x-coordinate from E to F is from 1 to 4, a change of 4-1 = 3.
The slope is the ratio of these changes:
... slope = 5/3