Answer to Question #151545 in Math for helen

Question

(e) The oxygen consumption (in milliliter per kilogram per minute) for a person walking at x kilometer per hour is approximated by the function

Whereas the oxygen consumption for a runner at x kilometer per hour is approximated by the function

(i) Draw the graphs of f and g on the same co-ordinate system. [3 marks]
(ii) At what speed is the oxygen consumption the same for a walker as is for a runner? What is the level of oxygen consumption at that speed? [2 marks]
(iii) What happens to the oxygen consumption of the walker and the runner at speeds beyond that found in part (ii)? [1 mark]

Answer 1

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