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(1) Which quantity is changing? What quantity is not? What is the relationship between the number of trucks and the total load? Why? What is the discovery? (2) What quantity is changing? What quantity is unchanged? What is the relationship between the height of water injection and the time of water injection? Why? Try to finish it tonight!
(1) A: the number of trucks and the total number of trucks are changing, and the weight of each truck is unchanged. Because the weight / number of trucks = 6 (fixed), the weight and the number of trucks are in a positive proportion. It is found that the points described are all on the same straight line
(2) A: time and height are changing, and the height per minute is constant. Because height / time = 4 (fixed), height and time are in direct proportion
RELATED INFORMATIONS
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