Each ordered pair gives the exposure index x of a carcinogenic substance and the cancer mortality y per 100,000 people in the population. Use the model to approximate y if . Round your answer to one decimal place.
A) 168.2
B) 163.6
C) 182.0
D) 172.8
E) 177.4

Question

Each ordered pair gives the exposure index x of a carcinogenic substance and the cancer mortality y per 100,000 people in the population. Use the model  to approximate y if  . Round your answer to one decimal place. 
A) 168.2 
B) 163.6 
C) 182.0 
D) 172.8 
E) 177.4

Quizplus · Accepted Answer

Using the given model, we need to plug in x = 9.6:
y = 58.8 + 12.4(9.6) = 172.8
Rounding to one decimal place, we get y ≈ 172.8.
Therefore, the best choice is D.

Each Ordered Pair Gives the Exposure Index X of a Carcinogenic