A rental car company charges $75 for a 3-day rental and $155 for a 7-day rental. Write an equation to find the amount that the rental car company will charge for any number of days.

• y=20x

• y=20x+15

• y=80x

• y=80x-165

A ticket service is selling tickets to a concert. An order of 4 tickets has a price of $63 and an order of 6 tickets has a price of $92. Write an equation to find the price of any amount of tickets.

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Which equation describes the line that contains the points (7,17) and (15,33)?

• y=-2x+31

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• y=2x+3

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Which equation describes the line that contains the points (-1,-8) and (-9,-21)?

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Which equation describes the line that contains the points (-5,2) and (3,7)?

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