SOLUTION: Determine the vertex of y=x^2 -8x+22. My answer is (-4,18) but not sure. thanks for looking it over.

Algebra ->  Points-lines-and-rays -> SOLUTION: Determine the vertex of y=x^2 -8x+22. My answer is (-4,18) but not sure. thanks for looking it over.      Log On


   

Question 43504This question is from textbook Algebra and trigonometry with analytic geometry
: Determine the vertex of y=x^2 -8x+22. My answer is (-4,18) but not sure. thanks for looking it over. This question is from textbook Algebra and trigonometry with analytic geometry

Answer by atif.muhammad(135) About Me  (Show Source):
You can put this solution on YOUR website!
x^2 -8x+22
Find the vertex.
In such questions, we have to complete the square.
x^2 -8x+22
Complete the square: (x-4)^2 - 16 + 22
If you are not sure about completing the square, then I suggest you revise this topic. I cannot think of any other way of doing this question apart from completing the square.
(x-4)^2 +6
Therefore, the vertex is (4,6)