1. The graph shows the mass of grain
that can be harvested from a land of given area.
From the graph read the answers to the following
questions:
1.1 The mass that can be harvested from
1.1.1 10 Ha.
1.1.2 34 Ha.
1.2 The area needed to produce
1.2.1 150 tons.
1.2.2 200 tons.
1.3 What is the smallest area needed to produce
100 tons of grain?
1.4 What is the maximum mass that can be
harvested from 40Ha?
2. The accompanying graph shows how much
petrol is used to travel a certain distance.
From the graph read the answers to the following
questions:
2.1 How much petrol is needed to travel
2.1.1 70 km?
2.1.2 200 km?
2.2 How far can you travel if you use
2.2.1 5 litres of petrol?
2.2.2 30 litres of petrol?
2.3 What is the average comsumption of petrol
(expressed in litres/100km)?
2.4 Use this number to compute the answers to the
questions in 2.1 and 2.2
3. The table below shows the time necessary to travel a certain distance.
Distance (km) 170
300 340 420
b 595 786
Time
(h) 2
a
4 5
6,5
7 9,25
distance
3.1 Does the rate -------------- stay the same? Calculate three rates to confirm
your answer.
time
3.2 What will be the form of the graph of distance divided by time? Explain your
answer.
3.3 At what average speed does the car travel? Does this average speed remain constant?
3.4 Calculate the value of a and of b in the table.
3.5 Draw a graph of time, on the x-axis, against distance, on the y-axis for a
period of time of 9,25 hours.
3.6 From your graph read the answers to the following questions and mark
the points where you took
the readings with the letter given in brackets:
3.6.1 The time needed to travel 128 km (A)
3.6.2 The distance travelled in 9 hours. (B)
3.6.3 The maximum distance that can be travelled in 8,25 hours. (C)