PSLE The graph shows the height of a plant from May to September.
- What was the height of the plant in August?
- During which period did the plant grow the least? Give your answer in numbers. (Eg Jan to Feb = 1 to 2)
(a)
Height of the plant in May (5) = 18 cm
Height of the plant in June (6) = 23 cm
Height of the plant in July (7) = 24 cm
Height of the plant in August (8) =
29 cm Height of the plant in September (9) = 39 cm
Height of the plant in August (8) = 29 cm
(b)
To find the greatest increase, look for the steepest increase in the line graph.
To prove:
Increase in height from May (5) to June (6) = 23 - 18 = 5 cm
Increase in height from June (6) to July (7) = 24 - 23 =
1 cm Increase in height from July (7) to August (8) = 29 - 24 = 5 cm
Increase in height from August (8) to September (9) = 39 - 29 = 10 cm
Period which the plant grew the least = June (6) to July (7)
Answer(s): (a) 29 cm; (b) 6 to 7