sea level. The scatter diagram shows the air temperature, °C, at each of these heights, km, y x above sea level. (a) Using the scatter diagram, write down the air temperature recorded at a height of 2.5 km above sea level. ................................. °C (1) (b) Describe the correlation between the air temperature and the height above sea level. ........................................................ (1) Air temperature at different heights above sea level (c) On the scatter diagram, plot the point (1.5, 8) and draw a line of best fit through (1.5, 8). (2) (d) Using your line of best fit, find an estimate of the height above sea level when the air temperature is 0°C. ........................... km (1) (Total for Question 25 is 5 marks) ___________________________________________________________________________ 26. Enlarge shape S with scale factor and centre (1, 3). (Total for Question 26 is 2 marks) ___________________________________________________________________________ 27. is a right-angled triangle. ABC Work out the size of the angle marked x.
sea level. The scatter diagram shows the air temperature, y °C, at each of these heights, x km, above sea level. (a) Using the scatter diagram, write down the air temperature recorded at a height of 2.5 km above sea level. ................................. °C (1) (b) Describe the correlation between the air temperature and the height above sea level. ........................................................ (1) Air temperature at different heights above sea level (c) On the scatter diagram, plot the point (1.5, 8) and draw a line of best fit through (1.5, 8). (2) (d) Using your line of best fit, find an estimate of the height above sea level when the air temperature is 0°C. ........................... km (1) (Total for Question 25 is 5 marks) ___________________________________________________________________________ 26. Enlarge shape S with scale factor and centre (1, 3). (Total for Question 26 is 2 marks) ___________________________________________________________________________ 27. ABC is a right-angled triangle. Work out the size of the angle marked x.
05_practice_tests_set_7_-_paper_3f__final.docx