Use the graph below to answer the question. Connie's Savings Account 75 70 65 60 55 45 40 35 30 25 20 15 4. Number of Weeks Which of the following equations represents the relationship between weeks, x, and the amount of money in the bank, y? y-15x y- 15x + 25 25x 25x + 15 Amount of Money in Bank

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Maximization

Have you ever seen a bridge in the shape of a parabola? Where is its maximum on the bridge? The maximum of that bridge is the highest point on that bridge. The process of finding the maximum of the bridge here is called the maximization.