PSLE The graph shows the height of a plant from July to November.
- What was the height of the plant in September?
- During which period did the plant grow the most? Give your answer in numbers. (Eg Jan to Feb = 1 to 2)
(a)
Height of the plant in July (7) = 10 cm
Height of the plant in August (8) = 16 cm
Height of the plant in September (9) =
25 cm Height of the plant in October (10) = 40 cm
Height of the plant in November (11) = 48 cm
Height of the plant in September (9) = 25 cm
(b)
To find the greatest increase, look for the steepest increase in the line graph.
To prove:
Increase in height from July (7) to August (8) = 16 - 10 = 6 cm
Increase in height from August (8) to September (9) = 25 - 16 = 9 cm
Increase in height from September (9) to October (10) = 40 - 25 =
15 cm Increase in height from October (10) to November (11) = 48 - 40 = 8 cm
Period which the plant grew the most = September (9) to October (10)
Answer(s): (a) 25 cm; (b) 9 to 10