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For an experiment in Botany, two different plants, plant A and plant B were grownunder similar laboratory conditions. Their heights were measured at the end of eachweek for 3 weeks. The results are shown by the following graph.
A. How high was Plant A after (i) 2 weeks (ii) 3 weeks?
B. How high was Plant B after (i) 2 weeks (ii) 3 weeks?
C. How much did Plant A grow during the 3rd week?
D. How much did Plant B grow from the end of the 2nd week to the end of the3rd week?
E. During which week did Plant A grow most?
F. During which week did Plant B grow least?
G. Were the two plants of the same height during any week shown here? Specify.
A.
i. After 2 weeks, the height of plant A was 7 cm.
ii. After 3 weeks, the height of plant A was 9 cm.
B.
i. After 2 weeks, the height of plant B was 7 cm.
ii. After 3 weeks, the height of plant B was 10 cm.
C. Growth of plant A during 3rd week
= 9 -7
= 2 cm
D. Growth of plant B from the end of 2nd week to the end of 3rd week:
= 10 -7
= 3 cm
E. Growth of plant A during 1st week:
= 2-0
= 2cm
Growth of plant A during 2nd week:
= 7 -2
= 5 cm
Growth of plant A during 3rd week:
= 9 -7
= 2 cm
Hence, A grew the most in its 2nd week i.e. 5 cm.
F. Growth of plant B during 1st week:
= 1 -0
= 1 cm
Growth of plant B during 2nd week:
= 7 -1
= 6 cm
Growth of plant B during 3rd week:
= 10 -7
= 3 cm
Hence, plant B grew the least in 1st week i.e. 1cm
G. The heights of both the plants were same at the end of 2nd week.
Use the tables below to draw linear graphs.
A. The number of days a hill side city received snow in different years.
Year | 2003 | 2004 | 2005 | 2006 |
Days | 8 | 10 | 5 | 12 |
B. Population (in thousands) of men and women in a village in different years.
Year | 2003 | 2004 | 2005 | 2006 | 2007 |
Number of Men | 12 | 12.5 | 13 | 13.2 | 13.5 |
Number of Women | 11.3 | 11.9 | 13 | 13.6 | 12.8 |