QuestionFind the values of $x$ for which the profit $P=4x^{2}-17x+15$ is positive, where $x$ is in hundreds of dollars.

Studdy Solution
From the results of our tests, we can conclude that the company makes a profit for $x$ in the intervals $(-\infty,.25)$ and $(3, +\infty)$, when the amount spent on advertising is less than $125$ or more than $300$ (in hundreds of dollars).