Part a
What was the students speed from 3< t <5?
Looking at the graph
from 3< t <5 --------> speed =12 miles per hour
Part b
At what times during the bike ride did the student come to a stop?
Remember that
If the student comes to a stop
then
the speed is equal to zero
so
at
t=0 min
t=10 min
t=20 min
Part c
During what time intervals was the students speed increasing?
we have that
interval (0,3)
interval (6,7)
interval (10,13)
interval (15,16)
Part d
What was the students speed from 16 < t <20?
we have that
interval (16,19) -----> speed is constantly equal to 14 miles per hour
interval (19,20) ----> speed is decreasing from 14 miles per hour to zero
Part e
During what time intervals was the students speed constant?
interval (3,6)
interval (7,9)
interval (13,15)
interval (16,19)
Part f
During what time intervals was the students speed decreasing?
interval (9,10)
interval (19,20)