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.
1 Slope intercept form and point slope make it easier to find the slope of your line. 2  In standard form, you must do some work to get the slope. 3  Point slope makes it easy to graph the line when you only know the line's slope and a single point or when you know 2 points on the line.eneral Formula for x and y intercepts. For the equation of a line in the standard form, $Ax + By = C $$ where where $$ A \ne 0 $$ and $$ B \ne 0$$ , you can use the formulas below to find the x and y-intercepts. The x-intercept =$$ \frac C A = \frac 6 3 =2 $$. The y-intercept =$$ \frac C B = \frac 6 2 = 3 $$.