Answer:
5.2 cm.
Explanation:
Given :
Number of Weeks(x) Height of Plant (y)
0 1
0.5 1.2
1 1.4
1.5 2
2 2.4
2.5 2.7
3 3
3.5 3.3
4 3.5
4.5 3.8
5 4
We are given that A straight line joins the ordered pairs 0, 1 and 5, 4
So, we will find the equation of line using two point slope form:



Substitute the values in the formula

---A
Now we are supposed to find e the approximate height of the plant after 7 weeks.
Substitute x = 7 in A



Hence the approximate height of the plant after 7 weeks is 5.2 cm.