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antonio9768
antonio9768
03.10.2019 • 
Mathematics

In 2011, a collector of sports memorabilia purchased specific baseball cards as an investment. let y represent each card’s resale value (in dollars) and x represent the number of years since purchase. each of the cards’ resale values after 0, 1, 2, 3, and 4 years could be modeled by linear functions as follows:

card a: y=3−0.8x ,card b: y=7+2.7x ,card c: y=15+0.9x ,card d: y=14−3.1x ,card e: y=5+0.25x

select all cards that are decreasing in value.

question 3 options:

a)

card e: y=5+0.25x

b)

card d: y=14−3.1x

c)

card b: y=7+2.7x

d)

card c: y=15+0.9x

e)

card a: y=3−0.8x
more than one answer.

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