1.1 QUESTION 1 The graph below shows the distance Thando and her friends covered when they went hiking at the Magaliesburg mountains. Number of kilometres hiked 16 14 124 10 8 9 2 7:00 8:00 9:00 10:00 11:00 12:00 13:00 Time of day G 14:00 1.1.1. Identify the dependent and independent variables. 1.1.2. At what time did they finish hiking? (2) .(2) 1.1.3. What does the flat (horizontal) part B-C on the graph represent? (2) 1.2 The BMI (Body Mass Index) of a person who is over 20 years of age can be calculated by using the following formula: BMI Weight (in kg) [Height in (m)]² According to this value, and adult can be classified according to the following table: 1.2.1 BMI Less than 18,5 From 18,5 to 24,9 From 25 to 29,9 Above 30 Calculation Underweight Normal Overweight Obese Calculate the BMI of the following two people: Person 1: Weight: 65 kg; Height: 1,54 m Person 2: Weight 55,45 kg; Height: 1,778 m tall. (6) 1.2.2 Use the above table to comment on the weight status of the two people in Question 121 if they are adults. (2) (14)
