1. The problem asks for the left and right end behavior and the positive and negative behavior of a function, but the function is not specified. 2. To analyze end behavior, we look at the limits of the function as $x \to -\infty$ (left end) and $x \to +\infty$ (right end). 3. For positive and negative behavior, we examine the function values for positive $x$ and negative $x$ respectively. 4. Since no function is given, we cannot determine these behaviors. 5. Please provide the function to analyze its end behavior and sign behavior.