The constant shelling did not bother him as much as the loss of his food. As the siege wore on, fewer and fewer horses, mules, and dogs were seen wandering about Vicksburg. Shoe leather became a last resort of sustenance for many adults.
If the graph of a quadratic function has two x-intercepts, then the line of symmetry is the vertical line through the midpoint of the x-intercepts. The x-intercepts of the graph above are at -5 and 3. The line of symmetry goes through -1, which is the average of -5 and 3. (-5 + 3)/2 = -2/2 = -1.
This is the same as an x-intercept. You havenât specified exactly which cubic polynomial you have in mind, but the derivative will be a degree 2 polynomial. Three things can happen: The first derivative will have 2 roots. In that case, one of them will be a local maximum, the other a local minimum; The first derivative will have a single double root.