PRACTICE EXERCISE
Practice 5
1 Given the graphs below, decide which graphs have a constant rate of change and
which do not.
a
642
d 10
6
8
6-
12
4
2
0
2 4 6 8 10
2 Given the situations below, decide which represent a constant rate of change and
which do not.
a On vacation you give yourself a daily budget. You spend 200 euros per day for
14 days.
b You are running a race. You start by going 1 km every 6 minutes. After 2 km you
speed up and start running 1 km every 5 minutes for the rest of the race.
You are spending a summer traveling and you want to see as many cities as
possible. You decide to visit one city per day for the 10 days you are on vacation.