9 Question 6 (3 marks) Distance can be measured in kilometres or in miles. The following graph shows the relationship between distance in kilometres and distance in miles. 100 80 (40, 64.4) distance in 60 kilometres 40 20 0 0 10 20 30 40 distance in miles This relationship can also be shown by the equation 50 50 60 50 distance in kilometres = mx distance in miles a. Show that m=1.61. 1 mark b. Marni drove 37 miles yesterday. Use the equation above to calculate the distance, in kilometres, that Marni drove yesterday. 1 mark C. Marni's car uses 0.16 litres of fuel for every kilometre it travels. Last week Marni's car used a total of 38.64 litres of fuel. Use the equation above to calculate the distance in miles that Marni's car travelled last week. 1 mark