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?

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.

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step-by-step explanation:

the x's and the y's both go up the same amount each time, therefore it will be a linear function because it will go in a straight line when drawn on a graph.

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