Challenge The value of a baseball player's rookie card began to increase once the player retired. When he retired in 1995 his card was worth $4.39. The value has increased by $1.25 each year
since then. Express the relationship relating the value of the card y in dollars and the number of
years x the player has been in retirement with an equation. Is the relationship between x and y
proportional? What was the value of the card in 2003?
Express the relationship with an equation