The value of a baseball card in dollars has been found to be 0.15y + 0.35, where y is the number of years since it was released. By how much is the baseball card's value increasing per year?
A.
$0.15
B.
$0.35
C.
15%
D.
35%
A. $0.15
The coefficient of y in the given equation represents the rate of change of the value of the baseball card per year. In this case, the coefficient is 0.15, so the baseball card's value is increasing by $0.15 per year.