9) Adam collects coms. Over a three-year
period he collected 1.000 nickels. After
organizing them by year, he found that the
number of nickels from a given year wis
related to the number minted that year:
Adam discovered that this can be modeled
by the equation y -2.94 - 717 where 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
Minted (100 millio Sample
38
6.4
7.2
128
15.2
17.8
# In Sample
S 10 12
# Minted (100 millon)
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 1,000? Round your answer to the nearest whole
number
d) A sample of 1.000 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