Eric received a gift card worth $25 as a birthday present. He is spending $2.50 per day using the gift card, as shown in the graph below. Which statement is true about the linear function that represents his gift card spending? The initial value is the amount on the gift card before Eric starts using it.
The initial value is the amount on the gift card after Eric finishes using it.
The rate of change is the amount on the gift card before Eric starts using it.
The rate of change is the amount on the gift card after Eric finishes using it.