- Walch Education
A local store’s monthly revenue from T-shirt sales, f(x), as a function of price, x, is modeled by the function f(x) = −5x2 + 150x − 7. Use the equation and graph to answer the following questions: At what prices is the revenue increasing? Decreasing? What is the maximum revenue? What prices yield no revenue? Is the function even, odd, or neither?
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