0.15y + 0.35

Question

The value of a baseball card in dollars has been found to be in the equation above, where y is the number of years since it was released. By how much is the baseball card's value increasing per year?

Answer 1

The given equation for the value of the baseball card in dollars is:

\[ 0.15y + 0.35 \]

In this equation, \(y\) represents the number of years since the baseball card was released. The term \(0.15y\) indicates that for each additional year \(y\), the value of the baseball card increases by \(0.15\) dollars.

Thus, the baseball card's value is increasing by:

\[ \boxed{0.15} \text{ dollars per year.} \]