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9-12.

Galaxy 80 Cinemas wants to increase their profits by increasing their ticket prices. Which of the following graphs best represents a graph of profit versus price? Explain.

  1. First quadrant, x axis labeled ticket price, y axis labeled profit, increasing line starting at the origin.

  1. First quadrant, x axis labeled ticket price, y axis labeled profit, decreasing line starting at top of y axis, ending at right end of x axis.

  1. First quadrant, x axis labeled ticket price, y axis labeled profit, concave down curve starting at the origin, turning down half away across x axis & 1 fourth way up y axis, ending at right end of x axis.

  1. First quadrant, x axis labeled ticket price, y axis labeled profit, increasing concave down curve starting at the origin, ending at point half way across x axis & 1 fourth way up y axis.

Graph (c) represents the graph of profit versus price because profits will increase as ticket price increases, but at some point the cost will outweigh demand and tickets sales will begin to decrease.

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