a. $0.15
The value of the baseball card is increasing by $0.15 per year.
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%
1 answer