HegartyMaths Question 1: The graph shows the amount of petrol used, in litres, against distance travelled in miles. a) What is the distance travelled if 0.6 litres of petrol has been used? b) How many litres of petrol are used to travel 51 miles? c) If each litre of petrol costs £1.80, what is the cost of petrol needed to travel 33 miles? HegartyMaths Question 2: The graph shows depth of water in a tank over time. a) In how many minutes will the tank have lost all of its water? b) When was the water depth half of its starting value? HegartyMaths Question 3: The graph shows the temperature of coffee while it cools. a) What is the temperature of the coffee at 10 minutes? b) At what time was the temperature 30oC? c) How long does it take for the coffee's temperature to be half what it started at? HegartyMaths Question 4: The graph shows the depth of water in a harbour for 12 hours. d is the depth of water in metres, and t is the number of hours after 08:00. a) What was the maximum depth the water reached during this time period? b) At what time of day was the depth of the water the lowest? c) For how many of the 12 hours is the depth greater than 3 m? d) How much does the depth fall between 13:00 and 15:00? HegartyMaths Question 5: The graph shows the water temperature in two pots as they warm up on a hob. a) What is the temperature of the water in the second pot at 2 minutes? b) How long, in minutes, does it take the water in the first pot to reach 92ºC? c) For which pot does the water reach a higher maximum temperature? d) When is the temperature of the water in both pots the same? Pot 1 Pot 2 e) For which pot does the water reach 60 ºC more quickly? f) What is the difference in the temperatures of the water in both pots at 3 minutes? HegartyMaths Question 6: Munir is cooking a gammon joint. The graph shows how the time it takes to cook the joint varies with the mass of the joint. Assuming the time taken varies in the same way as shown in the graph for masses greater than 4 kg, use the graph to estimate how long it would take to cook a 6 kg gammon.
