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%
The given equation is V = 0.15y + 0.35, where V is the value of the baseball card in dollars and y is the number of years since it was released.
To find how much the value of the baseball card is increasing per year, we need to find the derivative of V with respect to y.
dV/dy = 0.15
Therefore, the value of the baseball card is increasing by $0.15 per year. Answer: A. $0.15