SOLUTION: Guy has a gift card that he uses to buy video games. Each game costs $7, and after buying 8 games, he has $5 left. What is an equation in point-slope form of the line that represen

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Guy has a gift card that he uses to buy video games. Each game costs $7, and after buying 8 games, he has $5 left. What is an equation in point-slope form of the line that represen      Log On


   

Question 1146338: Guy has a gift card that he uses to buy video games. Each game costs $7, and after buying 8 games, he has $5 left. What is an equation in point-slope form of the line that represents his card balance, y, after buying x games?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!

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Each game costs $7
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m=-7

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after buying 8 games, he has $5 left.
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One of the points is (8, 5).




Point-Slope Form:
y-5=-7%28x-8%29