Answer:
see attached
Step-by-step explanation:
It is useful to start at the given y-intercept, then go up 4 units for 5 units to the right. (That is what is meant by a slope of 4/5.) This puts you at the end of the first interval and at the point (5, 8).
The graph drops 2 units for a run of 5 units in the second interval, which puts you at the point (10, 6) at the end of that interval.
The graph is attached.