A botanist collects and models some data and is able to determine that the number of germinated seeds of a certain plant is linearly correlated to the amount of rainfall during the previous month, according to the equation s = 28.5r + 83. In this equation, s is the number of seeds germinated, and r is the amount of rainfall in inches. In a certain geographic region that the botanist is studying, 197 seeds germinated. Approximately how many inches of rainfall did that area receive during the previous month?
A. 3.1
B. 4
C. 7
D. 9.8
Answer:B
A botanist collects and models some data and is able to determine that the number of germinated seeds of a certain plant is linearly correlated to the amount of rainfall during the previous month, according to the equation s = 28.5r + 83. In this equation, s is the number of seeds germinated, and r is the amount of rainfall in inches. In a certain geographic region that the botanist is studying, 197 seeds germinated. Approximately how many inches of rainfall did that area receive during the previous month?
A. 3.1 B. 4 C. 7 D. 9.8
Explanation: B