X
Amount of Fertilizer Fertilizer A Weekly Average
(kg)
Growth (cm)
1
2.8
4.6
1.3
0.3
x
1.5
2
2.5
Gregory is doing his experiment for the science fair. The above table shows the data he collected. Based on the table, what is the best description
of what Gregory wanted to know?
A
Which amount of fertilizer will show the most growth?
B
C
D
Which brand of fertilizer (A, B, or C) works the best?
Soil Test
Fertilizer B Weekly Average
Growth (cm)
2.5
3.3
1.8
0.2
What level of fertilizer is the most that can be given before growth declines?
Which brand and amount of fertilizer will work best?
Fertilizer C Weekly Average
Growth (cm)
3.8
5.1
2.5
0.5