Down 3 over 1
aka -3 is the slope
<span>Your first point is (1,4) The second is (2,1). Use the formula
y-y
x-x = slope
4-1
1-2 = slope
3
-1
3/-1 equal to -3</span>
Answer: It varies.
It depends on how frequent the plant grows by 10 cm, and how much time there is for the growing.