HELP I WILL MARK BRANLIEST ANSWER A line passes through the point (-2, 7) and has a slope of -5 09
7
8
6
4
3
2
-8-5-6-6
3.4.5.6.7.8
x
2
............
9
What is the value of a if the point (a, 2) is also on the line?
O-7
O-1
O1
O7

d

Step-by-step explanation:

Solution:-

The experimental unit is the physical entity which can be assigned, at random, to a treatment. ( The treatment in our scenario is the effect of two types of fertilizers Type A and Type B on the plants )

- Commonly it is an individual animal - plant. The experimental unit is also the unit of statistical analysis. ( statistical analysis is done on the plants divided into two groups: Group 1 and Group 2 )

- However, any two experimental units must be capable of receiving different treatments. ( Group 1 - Type A fertilizer ) & ( Group 2 - Type B fertilizer ).

The experimental unit are the two groups ( Group 1 and Group 2 ) each consists of 20 plants.