Standard Form of a Linear Equation

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(8, 0)

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Equation to model: A sandwich shop sells sandwiches for $5 each and bottles of water for $1 each. The owner needs to earn $100 by the end of the day. If x is the number of sandwiches sold and y is the number of bottles of water.

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(3, 0) and (0, 5)

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Equation for selling drinks: $2 per lemonade cup, $3 per orange drink, total sales $240.

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2x + 3y = 240

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(5, 0) and (0, -2)

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Jenny spent $150 at Kohl's. T-shirts: $15 each, Hoodies: $20 each. Write an equation with x as T-shirts and y as hoodies.

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15x + 20y = 150