Martin has a gift card to a coffee shop. Each day he buys the same coffee. This table shows the amount remaining in dollars on the gift card on different days.

Time (days) 2 4 5 7
Amount remaining ($) $24.10 $18.20 $15.25 $9.35

Identify the original value of Martin's gift card on the coordinate plane.

Martin has a gift card to a coffee shop Each day he buys the same coffee This table shows the amount remaining in dollars on the gift card on different days Tim class=