First we take our equation and subtract 4. Next we can factor out a 2 and we have to do this to both sides. To find our "square we have to take b and divided it by two and then square it. When we do that we get 16. Then we figure out that x^2 -8x +16 can factor into x-4^2.
From here we can use this to graph and so love. To solve we have to divide by 2 and then take the square root. We have to remember to make it plus and minus.
To graph we Take our vertex which is positive 4 and negative 28. We look at our vertex to find the axis, and we let y equal 0 to find the y-int.
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