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.
x-and y-Intercepts. The graphical concept of x-and y-intercepts is pretty simple. The x-intercepts are where the graph crosses the x-axis, and the y-intercepts are where the graph crosses the y-axis. The problems start when we try to deal with intercepts algebraically.To clarify the algebraic part, think again about the axes.ake a closer look, and you'll see that the y-axis is also the line  x = 0. In the same way, the x-axis is also the line  y = 0. Then, algebraically, 1  an x-intercept is a point on the graph where y is zero, and. 2  a y-intercept is a point on the graph where x is zero.