PSLE The graph shows the height of a plant from January to May.
- What was the height of the plant in May?
- 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 January (1) = 23 cm
Height of the plant in February (2) = 35 cm
Height of the plant in March (3) = 35 cm
Height of the plant in April (4) = 45 cm
Height of the plant in May (5) =
54 cm Height of the plant in May (4) = 54 cm
(b)
To find the greatest increase, look for the steepest increase in the line graph.
To prove:
Increase in height from January (1) to February (2) = 35 - 23 = 12 cm
Increase in height from February (2) to March (3) = 35 - 35 =
0 cm Increase in height from March (3) to April (4) = 45 - 35 = 10 cm
Increase in height from April (4) to May (5) = 54 - 45 = 9 cm
Period which the plant grew the least = February (2) to March (3)
Answer(s): (a) 54 cm; (b) 2 to 3