Question: The function f(x) = x 2 + 18x 72 models the daily profit, in dollars, a gym makes for selling memberships, where x is the

The function f(x) = x²+ 18x 72 models the daily profit, in dollars, a gym makes for selling memberships, where x is the number of memberships sold, and f(x) is the amount of profit.

Part A:Determine the vertex. What does this calculation mean in the context of the problem?

Part B:Determine the x-intercepts. What do these values mean in the context of the problem?

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