Question

Pete and winnie visit star cafe every day and they pay for the items using a gift card. the amount, y dollars, on winnie's gift card after x days is given by the equation y=100-19x. the graph shows the amount on pete's gift card over x days.

a.) Write an equation for the amount on Pete's gift card.

b.) using your answer in a.) whose gift card had a higher initial amount?

Answer 1

a.) Write an equation for the amount on Pete's gift card.

y = 80 - 10x

b.) using your answer in a.) whose gift card had a higher initial amount?

Winnie's gift card had a higher initial amount.