The percent of adults who smoke, recorded every few years since 1967, suggests a negative linear association with no outliers. A line was fit to the data to model the relationship.
Which of these linear equations best describes the given model?
Choose 1 answer:
(Choice A)
A
y=-0.5x+40
(Choice B)
B
y=-x+40
(Choice C)
C
y=-2x+40
(Choice D)
D
y=-3x+40
Based on this equation, estimate what percent of adults smoked in 1997.
Round your answer to the nearest tenth of a percent.