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Zachary purchased a computer for $1,800 on a payment plan. Three months after he purchased the computer, his balance was $1,365. Four months after he purchased the computer, his balance was $1,220. What
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Zachary purchased a computer for $1,800 on a payment plan. Three months after he purchased the computer, his balance was $1,365. Four months after he purchased the computer, his balance was $1,220. What is an equation that models the balance y after x months?

User Rob Packwood
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1 Answer

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Y=1800-(time)(payment)
1365=1800-3(x)
1220=1800-4(x)
User Franzl
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