9) Adam collects coins. Over a three-year
period he collected 1.000 nickels. Aner
organizing them by year, he found that the
number of nickels from a given year was
related to the number minted that year
Minted (100 mill In Sample
3.8
6.4
Adam discovered that this can be modeled
by the equation y = 2.94x - 7.17 where x is
the number of nickels minted in a particular
year in hundreds of millions and y is the
number of nickels from that year in his
sample.
72
12.8
15.2
17.8
In Sample
10-24
Minted (100 million)
a) What does the slope of the line represent?
b) What does the y-intercept of this function represent?
c) According to the model, how many nickels from a year in which 24 hundred million were
minted would you expect to find in a sample of 1,0007 Round your answer to the nearest whole
number
d) A sample of 1000 nickels contains 30 from a particular year According to the model, how
many would you expect to have been minted that year Round your answer to the nearest tenth
of a hundred million
WAN