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) = 14 cm
Height of the plant in August (8) = 22 cm
Height of the plant in September (9) =
26 cm Height of the plant in October (10) = 38 cm
Height of the plant in November (11) = 42 cm
Height of the plant in September (9) = 26 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) = 22 - 14 = 8 cm
Increase in height from August (8) to September (9) = 26 - 22 = 4 cm
Increase in height from September (9) to October (10) = 38 - 26 =
12 cm Increase in height from October (10) to November (11) = 42 - 38 = 4 cm
Period which the plant grew the most = September (9) to October (10)
Answer(s): (a) 26 cm; (b) 9 to 10