Answer:
(A) h=4d
Explanation:
Given is :
A seedling tree grows steadily at a rate of 4 cm per day.
This can be simplified like- on day 1 it grows 4 cm, on day 2 it grows 8 cm, on day 3 it grows 12 cm and so on...
So, the equation that describes how the height of this tree, h (in cm), depends on the number of days that passed, d is :
h=4d (where d is number of days and 4 is the constant rate of growth)