PSLE The graph shows the height of a plant from June to October.
- What was the height of the plant in October?
- During which period did the plant have no change in height? Give your answer in numbers. (Eg Jan to Feb = 1 to 2)
(a)
Height of the plant in June (6) = 26 cm
Height of the plant in July (7) = 34 cm
Height of the plant in August (8) = 34 cm
Height of the plant in September (9) = 43 cm
Height of the plant in October (10) =
50 cm Height of the plant in October (9) = 50 cm
(b)
To find the greatest increase, look for the steepest increase in the line graph.
To prove:
Increase in height from June (6) to July (7) = 34 - 26 = 8 cm
Increase in height from July (7) to August (8) = 34 - 34 =
0 cm Increase in height from August (8) to September (9) = 43 - 34 = 9 cm
Increase in height from September (9) to October (10) = 50 - 43 = 7 cm
Period which the plant grew the least = July (7) to August (8)
Answer(s): (a) 50 cm; (b) 7 to 8