This problem is showing how to find x-intercepts, y-intercepts, and the vertex (Maximum/minimum).
~Completing the Square~
In this problem, I first added 8 to the other side of the equation. Then,I took out a four and put it outside of the parenthesis. I then divided by 4. After,I square rooted everything and subtracted 2 to the other side. Because the equation is positive, it will be a minimum. The axis of symmetry will be at -2. To find y-int, you substitute 0 in for x, and find that it's -8.